;;;
;;; c:\\program files\\acl62\\music21.cl
;;;
(load "c:\\program files\\acl62\\music20.cl")
(defun make-a-phrase-1-2 (l)
(let ((num (length l)))
(case num
(2 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w (cut-list-at-length
(1+ (random 6))
(squash
(generate-a-phrase-at-random
(list (first lst)
(second lst))
))))))
(4 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w
(append w
(cut-list-at-length
(1+ (random 3))
(squash
(generate-a-phrase-at-random
(list (first lst)
(second lst))
)))))))
(6 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w
(append w
(cut-list-at-length
(1+ (random 2))
(squash
(generate-a-phrase-at-random
(list (first lst)
(second lst))
))))))))))
(defun make-a-phrase-2-2 (l)
(let ((num (length l)))
(case num
(2 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w
(cut-list-at-length
(1+ (random 6))
(squash
(generate-a-phrase-at-random-2
(list (car lst) (cadr lst))
))))))
(4 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w
(append w
(cut-list-at-length
(1+ (random 3))
(squash
(generate-a-phrase-at-random-2
(list (car lst)
(cadr lst))
)))))))
(6 (do ((lst l (cddr lst))
(w))
((null lst) w)
(setf w
(append w
(cut-list-at-length
(1+ (random 2))
(squash
(generate-a-phrase-at-random-2
(list (car lst)
(cadr lst))
))))))))))
(defun make-a-phrase-for-waltz (l)
(let* ((l1 (make-a-phrase-1-2 l))
(l2 (make-a-phrase-2-2 l))
(n1 (length l1))
(n2 (length l2))
(r1 (get-rythm-of-3beat n1))
(r2 (get-rythm-of-3beat n2)))
(list (list l1 r1) (list l2 r2))))
(defun make-phrases-for-waltz (l)
(do ((lst l (cdr lst)))
((null lst))
(format t "~%*** ~a ***" (car lst))
(format t "~%~a" (make-a-phrase-for-waltz (car lst)))))
;;;
;;; (make-waltz *w3*)
;;;
(defun make-waltz (wn)
(tagbody
(my-randomize)
(format t "~%*** ~a ***"
(second (first wn)))
(format t "~%The original key is ~a."
(first (first wn)))
(format t "~%Enter a key.")
loop1
(setf l1 (read-sentence))
(if (not (key-p (car l1)))
(go loop1))
(if (equal (car l1) (first (first wn)))
(setf l2 (cdr wn))
(setf l2
(modulate-key1-to-key2
(cdr wn)
(first (first wn))
(car l1))))
(format t "~%*** The key is ~a. ***"
(car l1))
(make-phrases-for-waltz l2)))
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