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  1. Here is a small project to explore pitch-mapping. There are some results but not the best ones yet. If anyone has an idea on how to improve this I would really appreciate the advice. What would be ideal as the result would be the same musical list (and notation) but with the transformed pitches. As you can see from the result, there are many changes and the result is not clean but rather seriously garbled instead! The goal is to remap the pitch content of the original with a new tonality-map. Here is the beginning attempt. A confusing element is the return of NIL when parsing :articulation from the original material. ;;; Pitch mapping project idea ;;; Original musical sequence: (setf alto-flute-orig '( (-q e b4 -e (-app e eb4 f4) h. eb4 (-acc e f4 eb4 f4)) (-3q 3q b4 -3q (-app e eb4 f4) q eb4 (-acc e f4) h eb4 (-acc e f4 a4 b4)) (-q e f5 -e (-app e b4 ds5) a4 (-app e. g4) a4 t b4 a4 b4 -e (-app e eb5) e f5) ((acc e b4 d5 ds5) q. c5 (acc s f5) e. b4 (acc e c5 d5 ds5) e. a4 (acc e b4 a4) e b4) (-q e b4 (app e f4 a4 f4) e b4 t g4 a4 eb4 a4 q. b4 (-acc e f4 a4) h bb4 t bb4 c5) (-e. b4 -e (acc a4 b4) h bb4 (app e c5) q b4 (acc e d5 ds5 e5) q. b4 (app e f4 bb4) s c5) (-e gs5 3s a4 d4 gs4 -e. bb4 tie q bb4 (3e b4 a4 b4 -e -e)) ((acc e a4 b4 fs4) h c5 (acc e b4) q c5 (acc e ds5 e5 fs5) 3e b4 c5 fs4 q a4 tie q a4 tie e. a4 s bb4 a4 e b4) (-e (acc e eb4) h f4 tie e. f4 s gb5 -e (acc eb5 f5) e e5 tie q e5 tie 3q e5 3q e5 3q f5 3q b4 -3q -3q) ((acc e bb4 b4) a4 (acc e bb4) h a4 (acc e bb4) e a4 s gs5 -s) ) ) ;;; ;;; Disassemble OMN: There are some errors here - in particular for :articulation which seems to return NIL (disassemble-omn alto-flute-orig) (setf pit (omn :pitch alto-flute-orig)) (setf len (omn :length alto-flute-orig)) ;;; next line result is confusing - returns nil (setf art (omn :articluation alto-flute-orig)) ;;; next line returns a result (setf artr (omn :rest-articulation alto-flute-orig)) ;;; Create 12-tone mapping and pitch transformation of original (setf map '(0 1 3 4 7 8 10 11 17 18 21)) (setf mapping (integer-to-pitch map)) (create-tonality 12T2 '(0 1 3 4 7 8 10 11 17 18 21)) (setf output (tonality-map '(12T2 :root c3 :fixed t) pit)) ;;; Assemble the parameters into a new OMN with transformed pitches (make-omn :length len :pitch output :articulation art :rest-articulation artr ) ;;; The result is unsuable so far. There are some things to iron-out here! :-)
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