From 4e5eed53a3a56de9f01e4a1474398239eddb52bd Mon Sep 17 00:00:00 2001
From: Lorenz Lehmann <lorenz.lehmann@students.muho-mannheim.de>
Date: Mon, 12 Feb 2024 08:15:46 +0100
Subject: [PATCH] fix (sources): replace setq with let/let*

---
 sources/gen-sequence.lisp |  639 +++++++++++++++++++++++++++++++++------------------------
 1 files changed, 373 insertions(+), 266 deletions(-)

diff --git a/sources/gen-sequence.lisp b/sources/gen-sequence.lisp
index 521e950..716a59b 100644
--- a/sources/gen-sequence.lisp
+++ b/sources/gen-sequence.lisp
@@ -162,27 +162,27 @@
                                       
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-                          (temp-base (cond (avoid-repetitions (setq looplist 
+                          (temp-base (cond (avoid-repetitions (let ((looplist 
                                                                     (remove nil (loop for a in temp-base
                                                                                       collect (if 
                                                                                                   (car 
                                                                                                    (remove nil 
                                                                                                            (mapcar #'(lambda (l) (eq (car l) (cadr l)))
-                                                                                                                   (mat-trans_oml (list first a))))) nil a))))
+                                                                                                                   (mat-trans_oml (list first a))))) nil a)))))
                                                                     
-                                             (if (null looplist) (list (loop repeat (length (first temp-base)) collect -1)) looplist))
+                                             (if (null looplist) (list (loop repeat (length (first temp-base)) collect -1)) looplist)))
                                            (t temp-base))) 
 
 
                          (temp-base (cond (voice-tie1 
-                                           (let ((voice-tie1 (- voice-tie1 1)))
-                                           (setq looplist (remove nil
+                                           (let* ((voice-tie1 (- voice-tie1 1))
+                                                  (looplist (remove nil
                                            (loop for a in temp-base 
                                                  collect 
-                                                 
+
                                                  (cond ((eq (nth voice-tie1 a) (nth voice-tie1 first)) a)
-                                                       ((eq (nth voice-tie1 a) -1) a)
-                                                       (t nil)))))
+                                                       ((eq (nth voice-tie1 first) -1) a)
+                                                       (t nil))))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
@@ -191,14 +191,14 @@
                                           (t temp-base)))
 
                          (temp-base (cond (voice-tie2 
-                                           (let ((voice-tie2 (- voice-tie2 1)))
-                                           (setq looplist (remove nil
+                                           (let* ((voice-tie2 (- voice-tie2 1))
+                                                  (looplist (remove nil
                                            (loop for a in temp-base 
                                                  collect 
                                                  
                                                  (cond ((eq (nth voice-tie2 a) (nth voice-tie2 first)) a)
-                                                       ((eq (nth voice-tie2 a) -1) a)
-                                                       (t nil)))))
+                                                       ((eq (nth voice-tie2 first) -1) a)
+                                                       (t nil))))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
@@ -207,14 +207,14 @@
                                           (t temp-base)))
 
                          (temp-base (cond (voice-tie3 
-                                           (let ((voice-tie3 (- voice-tie3 1)))
-                                           (setq looplist (remove nil
+                                           (let* ((voice-tie3 (- voice-tie3 1))
+                                                  (looplist (remove nil
                                            (loop for a in temp-base 
                                                  collect 
                                                  
                                                  (cond ((eq (nth voice-tie3 a) (nth voice-tie3 first)) a)
-                                                       ((eq (nth voice-tie3 a) -1) a)
-                                                       (t nil)))))
+                                                       ((eq (nth voice-tie3 first) -1) a)
+                                                       (t nil))))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
@@ -223,14 +223,14 @@
                                           (t temp-base)))
 
                          (temp-base (cond (voice-tie4 
-                                           (let ((voice-tie4 (- voice-tie4 1)))
-                                           (setq looplist (remove nil
+                                           (let* ((voice-tie4 (- voice-tie4 1))
+                                                  (looplist (remove nil
                                            (loop for a in temp-base 
                                                  collect 
                                                  
                                                  (cond ((eq (nth voice-tie4 a) (nth voice-tie4 first)) a)
-                                                       ((eq (nth voice-tie4 a) -1) a)
-                                                       (t nil)))))
+                                                       ((eq (nth voice-tie4 first) -1) a)
+                                                       (t nil))))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
@@ -238,314 +238,421 @@
                                              looplist)))
                                           (t temp-base)))
 
-
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
                          (temp-base (cond (voice-interval1 
-                                          (setq looplist (remove nil (loop for a in temp-base
+                                          (let ((looplist (remove nil (loop for a in temp-base
                                                                            collect
                                                                                  (if (or (find (- (nth 0 a) (nth 0 first)) voice-interval1)
-                                                                                           (eq (nth 0 first) -1)) a))))
+                                                                                           (eq (nth 0 first) -1)) a)))))
                                           (if (null looplist)
                                               (loop for a in temp-base
                                                     collect
-                                                    (subs-posn_oml a 0 -1)) looplist))
+                                                    (subs-posn_oml a 0 -1)) looplist)))
                                     (t temp-base)))
 
                          (temp-base (cond (voice-interval2 
-                                           (setq looplist (remove nil (loop for a in temp-base
+                                           (let ((looplist (remove nil (loop for a in temp-base
                                                                             collect
                                                                             (if (or (find (- (nth 1 a) (nth 1 first)) voice-interval2)
-                                                                                    (eq (nth 1 first) -1)) a))))
+                                                                                    (eq (nth 1 first) -1)) a)))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
-                                                     (subs-posn_oml a 1 -1)) looplist))
+                                                     (subs-posn_oml a 1 -1)) looplist)))
                                           (t temp-base)))
                          
                          (temp-base (cond (voice-interval3 
-                                           (setq looplist (remove nil (loop for a in temp-base
+                                           (let ((looplist (remove nil (loop for a in temp-base
                                                                             collect
                                                                             (if (or (find (- (nth 2 a) (nth 2 first)) voice-interval3)
-                                                                                    (eq (nth 2 first) -1)) a))))
+                                                                                    (eq (nth 2 first) -1)) a)))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
-                                                     (subs-posn_oml a 2 -1)) looplist))
+                                                     (subs-posn_oml a 2 -1)) looplist)))
                                           (t temp-base)))
 
                          (temp-base (cond (voice-interval4 
-                                           (setq looplist (remove nil (loop for a in temp-base
+                                           (let ((looplist (remove nil (loop for a in temp-base
                                                                             collect
                                                                             (if (or (find (- (nth 3 a) (nth 3 first)) voice-interval4)
-                                                                                    (eq (nth 3 first) -1)) a))))
+                                                                                    (eq (nth 3 first) -1)) a)))))
                                            (if (null looplist)
                                                (loop for a in temp-base
                                                      collect
-                                                     (subs-posn_oml a 3 -1)) looplist))
+                                                     (subs-posn_oml a 3 -1)) looplist)))
                                           (t temp-base)))
 
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;                           
                          (temp-base (cond (voice-counter1
-                                           (setq looplist (remove nil
-                                                                 (loop for a in temp-base 
-                                                                       collect
-                                                                       (let* ((instr-a (1- (first (car voice-counter1)))) ;0
-                                                                              (instr-b (1- (second (car voice-counter1)))) ;1
-                                                                              (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                              (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                              (rule (second voice-counter1)))
-                                                                        (cond (counter-interval1 
-                                                                                (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'parallel)
-                                                                                                   ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'contrary)
-                                                                                                   ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'seiten)))
-                                                                                    a))
-                                                                                
-                                                                                
-                                                                               (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                             a)))))))
 
-                                          
-                                          
-                                          (if (null looplist)
-                                              (loop for a in temp-base 
-                                                    collect 
-                                                    (subs-posn_oml a (1- (first (car voice-counter1))) -1)) looplist))
-                                                            
-                                                                
-                                                  
-                                         (t temp-base)))
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter1))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter1))) first))) counter-interval1) 
 
-                         (temp-base (cond (voice-counter2
-                                           (setq looplist (remove nil
-                                                                  (loop for a in temp-base 
-                                                                        collect
-                                                                        (let* ((instr-a (1- (first (car voice-counter2)))) ;0
-                                                                               (instr-b (1- (second (car voice-counter2)))) ;1
-                                                                               (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                               (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                               (rule (second voice-counter2)))
-                                                                          (cond (counter-interval2 
-                                                                                 (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                          (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'parallel)
-                                                                                                    ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                          (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'contrary)
-                                                                                                    ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                          (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'seiten)))
-                                                                                     a))
-                                                                                
-                                                                                
-                                                                                (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                                       a)))))))
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter1)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter1))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval1) a)))))
 
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter1))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter1))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter1)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter1)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter1)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval1 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval1)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter1))) -1)) looplist)))))
                                           
                                           
-                                           (if (null looplist)
-                                               (loop for a in temp-base 
-                                                     collect 
-                                                     (subs-posn_oml a (1- (first (car voice-counter2))) -1)) looplist))
                                           
-                                                                
-                                                  
                                           (t temp-base)))
                          
-                         (temp-base (cond (voice-counter3
-                                           (setq looplist (remove nil
-                                                                 (loop for a in temp-base 
-                                                                       collect
-                                                                       (let* ((instr-a (1- (first (car voice-counter3)))) ;0
-                                                                              (instr-b (1- (second (car voice-counter3)))) ;1
-                                                                              (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                              (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                              (rule (second voice-counter3)))
-                                                                        (cond (counter-interval3 
-                                                                                (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'parallel)
-                                                                                                   ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'contrary)
-                                                                                                   ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'seiten)))
-                                                                                    a))
-                                                                                
-                                                                                
-                                                                               (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                             a)))))))
+(temp-base (cond (voice-counter2
 
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter2))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter2))) first))) counter-interval2) 
+
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter2)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter2))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval2) a)))))
+
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter2))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter2))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter2)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter2)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter2)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval2 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval2)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter2))) -1)) looplist)))))
                                           
                                           
-                                          (if (null looplist)
-                                              (loop for a in temp-base 
-                                                    collect 
-                                                    (subs-posn_oml a (1- (first (car voice-counter3))) -1)) looplist))
-                                                            
-                                                                
-                                                  
-                                         (t temp-base)))
+                                          
+                                          (t temp-base)))
+                         
+ (temp-base (cond (voice-counter3
 
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter3))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter3))) first))) counter-interval3) 
 
-                         (temp-base (cond (voice-counter4
-                                           (setq looplist (remove nil
-                                                                 (loop for a in temp-base 
-                                                                       collect
-                                                                       (let* ((instr-a (1- (first (car voice-counter4)))) ;0
-                                                                              (instr-b (1- (second (car voice-counter4)))) ;1
-                                                                              (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                              (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                              (rule (second voice-counter4)))
-                                                                        (cond (counter-interval4 
-                                                                                (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'parallel)
-                                                                                                   ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'contrary)
-                                                                                                   ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'seiten)))
-                                                                                    a))
-                                                                                
-                                                                                
-                                                                               (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                             a)))))))
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter3)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter3))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval3) a)))))
 
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter3))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter3))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter3)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter3)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter3)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval3 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval3)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter3))) -1)) looplist)))))
                                           
                                           
-                                          (if (null looplist)
-                                              (loop for a in temp-base 
-                                                    collect 
-                                                    (subs-posn_oml a (1- (first (car voice-counter4))) -1)) looplist))
-                                                            
-                                                                
-                                                  
-                                         (t temp-base)))
+                                          
+                                          (t temp-base)))
 
 
-                         (temp-base (cond (voice-counter5
-                                           (setq looplist (remove nil
-                                                                 (loop for a in temp-base 
-                                                                       collect
-                                                                       (let* ((instr-a (1- (first (car voice-counter5)))) ;0
-                                                                              (instr-b (1- (second (car voice-counter5)))) ;1
-                                                                              (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                              (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                              (rule (second voice-counter5)))
-                                                                        (cond (counter-interval5 
-                                                                                (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'parallel)
-                                                                                                   ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'contrary)
-                                                                                                   ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'seiten)))
-                                                                                    a))
-                                                                                
-                                                                                
-                                                                               (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                             a)))))))
+ (temp-base (cond (voice-counter4
 
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter4))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter4))) first))) counter-interval4) 
+
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter4)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter4))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval4) a)))))
+
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter4))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter4))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter4)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter4)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter4)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval4 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval4)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter4))) -1)) looplist)))))
                                           
                                           
-                                          (if (null looplist)
-                                              (loop for a in temp-base 
-                                                    collect 
-                                                    (subs-posn_oml a (1- (first (car voice-counter5))) -1)) looplist))
-                                                            
-                                                                
-                                                  
-                                         (t temp-base)))
+                                          
+                                          (t temp-base)))
 
 
-                         (temp-base (cond (voice-counter6
-                                           (setq looplist (remove nil
-                                                                 (loop for a in temp-base 
-                                                                       collect
-                                                                       (let* ((instr-a (1- (first (car voice-counter6)))) ;0
-                                                                              (instr-b (1- (second (car voice-counter6)))) ;1
-                                                                              (delta-a (- (nth instr-a a) (nth instr-a first)))
-                                                                              (delta-b (- (nth instr-b a) (nth instr-b first)))
-                                                                              (rule (second voice-counter6)))
-                                                                        (cond (counter-interval6 
-                                                                                (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (= 0 delta-a) (= 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'parallel)
-                                                                                                   ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                             (and (> 0 delta-a) (< 0 delta-b)))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'contrary)
-                                                                                                   ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
-                                                                                                         (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'seiten)))
-                                                                                    a))
-                                                                                
-                                                                                
-                                                                               (t (if (equal rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
-                                                                                                         ((or (and (< 0 delta-a) (> 0 delta-b)) 
-                                                                                                              (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
-                                                                                                         ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
-                                                                                                              (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
-                                                                             a)))))))
+ (temp-base (cond (voice-counter5
 
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter5))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter5))) first))) counter-interval5) 
+
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter5)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter5))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval5) a)))))
+
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter5))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter5))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter5)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter5)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter5)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval5 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval5)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter5))) -1)) looplist)))))
                                           
                                           
-                                          (if (null looplist)
-                                              (loop for a in temp-base 
-                                                    collect 
-                                                    (subs-posn_oml a (1- (first (car voice-counter6))) -1)) looplist))
-                                                            
-                                                                
-                                                  
-                                         (t temp-base)))
+                                          
+                                          (t temp-base)))
+
+
+(temp-base (cond (voice-counter6
+
+                                           (cond ((and (or (eq -1 (nth (1- (first (car voice-counter6))) first))
+                                                           (eq -1 (nth (1- (second (car voice-counter6))) first))) counter-interval6) 
+
+                                                  (remove nil (loop for a in temp-base
+                                                                    collect (let* ((instr-a (1- (first (car voice-counter6)))) ;0
+                                                                                   (instr-b (1- (second (car voice-counter6))))
+                                                                                   (voice-i (- (nth instr-b a) (nth instr-a a))) ) 
+                                                                              (if (find voice-i counter-interval6) a)))))
+
+                                                 ((or (eq -1 (nth (1- (first (car voice-counter6))) first))
+                                                      (eq -1 (nth (1- (second (car voice-counter6))) first))) temp-base)
+                                                                              
+                                                 (t  (let ((looplist (remove nil
+                                                                            (loop for a in temp-base 
+                                                                                  collect
+                                                                                    (let* ((instr-a (1- (first (car voice-counter6)))) ;0
+                                                                                           (instr-b (1- (second (car voice-counter6)))) ;1
+                                                                                           (delta-a (- (nth instr-a a) (nth instr-a first)))
+                                                                                           (delta-b (- (nth instr-b a) (nth instr-b first)))
+                                                                                           (rule (second voice-counter6)))
+                                                                                      (cond 
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       
+                                                                                       (counter-interval6 
+                                                                                        (if (eq rule (cond ((and (or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'parallel)
+                                                                                                           ((and (or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b)))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'contrary)
+                                                                                                           ((and (or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b))))
+                                                                                                                 (find (- (nth instr-b a) (nth instr-a a)) counter-interval6)) 'seiten)))
+                                                                                            a))
+                                                                                       
+                                                                                       
+                                                                                       (t (if (eq rule (cond ((or (and (< 0 delta-a) (< 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (= 0 delta-a) (= 0 delta-b))) 'parallel)
+                                                                                                                ((or (and (< 0 delta-a) (> 0 delta-b)) 
+                                                                                                                     (and (> 0 delta-a) (< 0 delta-b))) 'contrary)
+                                                                                                                ((or (and (or (< 0 delta-a) (> 0 delta-a)) (= 0 delta-b))
+                                                                                                                     (and (= 0 delta-a) (or (< 0 delta-b) (> 0 delta-b)))) 'seiten)))
+                                                                                              a))))))))
+                                                     
+                                                     
+                                                     
+                                                     (if (null looplist)
+                                                         (loop for a in temp-base 
+                                                               collect 
+                                                                 (subs-posn_oml a (1- (first (car voice-counter6))) -1)) looplist)))))
+                                          
+                                          
+                                          
+                                          (t temp-base)))
 
 
                                             

--
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