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works, but only for one-time-repetiton... could you use it?


(defun merge-lengths-of-a-pitch-rep (omn-seq)
  (let* ((omn-seq (single-events omn-seq)) (l))
    (flatten (loop repeat (length omn-seq)
               for cnt = 0 then (incf cnt)
               when (equal (omn :pitch (nth cnt omn-seq)) (omn :pitch (nth (1+ cnt) omn-seq)))
               do (progn 
                    (setf l (length-note-merge (append (omn :length (nth cnt omn-seq)) (omn :length  (nth (1+ cnt) omn-seq)))))
                    (incf cnt))
               and collect (omn-replace :length l (nth cnt omn-seq))
               else collect  (nth cnt omn-seq)))))
(merge-lengths-of-a-pitch-rep '(e c4 mf d4 d4 e4 f4 f4))
=> (e c4 mf q d4 mf e e4 mf q f4 mf)


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