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Found 1 result

  1. Stephane Boussuge

    Short example of tendency masking

    Tendency masking is first described by the composer G.M. Koenig. It is a random selection between two envelope based boundaries. I have tried to reproduce here this technique for pitch and length selection in a very simple way. ;;; First, boundary description (setf highb (gen-palindrome '(6 6 6 7 8 8 9 10 10 11 12 13 14 15 16 16 16))) (setf lowb (gen-palindrome '(6 6 6 5 4 4 3 3 3 2 2 2 2 1 1 1 1))) ;;; Plotting (list-plot (list highb lowb) :join-points t) ;;; Random pitch selection between boundary (setf pitch (integer-to-pitch (mapcar (lambda (x y) (rnd-range x y)) highb lowb))) ;;; Random length selection between boundary (setf len (vector-to-length '1/16 1 8 (mapcar (lambda(x y) (rnd-range x y)) highb lowb))) ;;; OMN Assembly (setf phrase (make-omn :pitch pitch :length len))SB.
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