Overview
Comment: | Now handles chords |
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Timelines: | family | ancestors | descendants | both | ply |
Files: | files | file ages | folders |
SHA1: |
5aa14570f13983c6b441c37c2ebc5587 |
User & Date: | spiffytech@gmail.com on 2010-11-13 00:12:38 |
Other Links: | branch diff | manifest | tags |
Context
2010-11-13
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08:26 | Added basic ABC tokenizing via the PLY module check-in: 729263ecd0 user: spiffytech@gmail.com tags: ply | |
00:12 | Now handles chords check-in: 5aa14570f1 user: spiffytech@gmail.com tags: ply | |
2010-11-12
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20:30 | Now generates scores until it makes one 50 notes ling check-in: e425f3d6c2 user: spiffytech@gmail.com tags: ply | |
Changes
Modified cfg.py from [d8090f9de3] to [43fd8f5bb3].
1 2 3 4 5 6 7 8 | #!/usr/bin/env python import os import random import sys import time random.seed(time.time()) | > > | | | | > > > | > > | < | | | | | > | | > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | #!/usr/bin/env python import os import random import sys import time random.seed(time.time()) def main(): key = "C" note_grammars = { "u": ["I V I IV u", "I IV", "I VII IV" , "e"], "e": [""], } chord_grammars = { "u": ["I IV V IV I", "e"], "e": [""] } compose_piece(key, note_grammars) compose_piece(key, chord_grammars, chords=True) def compose_piece(key, grammars, chords=False): score = "" while len(score.split()) < 15: score = "u u u" score = generate_score(score, grammars) score = transliterate_score(score, key, chords) score = generate_csound_score(score) print "f1 0 256 10 1 0 3 ; sine wave function table" for line in score: print line def make_scale(key): notes = ["A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"] scale = [key] pos = notes.index(key) progression = [2,2,1,2,2,2,1] for p in progression: pos = (pos + p) % 12 scale.append(notes[pos]) return scale def generate_score(score, grammars): while 1: found_substitution = False for key,value in grammars.iteritems(): if score.find(key) != -1: found_substitution = True while score.find(key) != -1: score = score.replace(key, random.choice(grammars[key]), 1) if found_substitution is False: break return score def transliterate_score(score, key, chords=False): scale = make_scale(key) scale_conversion = { "I": 1, "II": 2, "III": 3, "IV": 4, "V": 5, "VI": 6, "VII": 7, "VIII": 8, } keyed_score = [] if chords is False: for token in score.split(): keyed_score.append(scale[scale_conversion[token]-1]) else: for token in score.split(): chord = [] root_note_index = scale.index(key) + scale_conversion[token] chord.append(scale[root_note_index]) chord.append(scale[(root_note_index+3) % 8]) chord.append(scale[(root_note_index+5) % 8]) keyed_score.append(chord) return keyed_score def generate_csound_score(score): csound_note_values = { "C": "00", "C#": "01", |
︙ | ︙ | |||
80 81 82 83 84 85 86 | "A": "09", "A#": "10", "B": "11", } t = 0 csound_score = [] for token in score: | > > > > > > | | | | 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 | "A": "09", "A#": "10", "B": "11", } t = 0 csound_score = [] for token in score: if isinstance(token, list): # Chords for note in token: note = csound_note_values[note] csound_score.append("i2 %(time)f 1 7000 %(octave)d.%(note)s %(octave)d.%(note)s 0 6" % {"time": t, "octave": random.choice([7,8]), "note": note}) t += 1 else: # Individual notes note = csound_note_values[token] csound_score.append("i2 %(time)f 1 7000 %(octave)d.%(note)s %(octave)d.%(note)s 0 6" % {"time": t, "octave": random.choice([8,9]), "note": note}) t += .25 return csound_score if __name__ == "__main__": main() |
Modified test.sco from [9253ead855] to [3dafd59328].
1 | f1 0 256 10 1 0 3 ; sine wave function table | | | | | | | | | | | | | | | | > | | > > | > | | | | | | > > | | > | | | | | | > | | | | | | | | | > | | | | | | | | | | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | f1 0 256 10 1 0 3 ; sine wave function table i2 0.000000 1 7000 9.00 9.00 0 6 i2 0.250000 1 7000 8.07 8.07 0 6 i2 0.500000 1 7000 8.00 8.00 0 6 i2 0.750000 1 7000 8.05 8.05 0 6 i2 1.000000 1 7000 9.00 9.00 0 6 i2 1.250000 1 7000 9.07 9.07 0 6 i2 1.500000 1 7000 8.00 8.00 0 6 i2 1.750000 1 7000 8.05 8.05 0 6 i2 2.000000 1 7000 8.00 8.00 0 6 i2 2.250000 1 7000 9.11 9.11 0 6 i2 2.500000 1 7000 8.05 8.05 0 6 i2 2.750000 1 7000 9.00 9.00 0 6 i2 3.000000 1 7000 9.07 9.07 0 6 i2 3.250000 1 7000 9.00 9.00 0 6 i2 3.500000 1 7000 8.05 8.05 0 6 f1 0 256 10 1 0 3 ; sine wave function table i2 0.000000 1 7000 8.02 8.02 0 6 i2 0.000000 1 7000 7.07 7.07 0 6 i2 0.000000 1 7000 8.11 8.11 0 6 i2 1.000000 1 7000 7.07 7.07 0 6 i2 1.000000 1 7000 8.00 8.00 0 6 i2 1.000000 1 7000 7.02 7.02 0 6 i2 2.000000 1 7000 8.09 8.09 0 6 i2 2.000000 1 7000 8.00 8.00 0 6 i2 2.000000 1 7000 8.04 8.04 0 6 i2 3.000000 1 7000 8.07 8.07 0 6 i2 3.000000 1 7000 8.00 8.00 0 6 i2 3.000000 1 7000 8.02 8.02 0 6 i2 4.000000 1 7000 7.02 7.02 0 6 i2 4.000000 1 7000 7.07 7.07 0 6 i2 4.000000 1 7000 7.11 7.11 0 6 i2 5.000000 1 7000 7.02 7.02 0 6 i2 5.000000 1 7000 7.07 7.07 0 6 i2 5.000000 1 7000 8.11 8.11 0 6 i2 6.000000 1 7000 8.07 8.07 0 6 i2 6.000000 1 7000 7.00 7.00 0 6 i2 6.000000 1 7000 7.02 7.02 0 6 i2 7.000000 1 7000 8.09 8.09 0 6 i2 7.000000 1 7000 7.00 7.00 0 6 i2 7.000000 1 7000 7.04 7.04 0 6 i2 8.000000 1 7000 7.07 7.07 0 6 i2 8.000000 1 7000 7.00 7.00 0 6 i2 8.000000 1 7000 7.02 7.02 0 6 i2 9.000000 1 7000 8.02 8.02 0 6 i2 9.000000 1 7000 8.07 8.07 0 6 i2 9.000000 1 7000 7.11 7.11 0 6 i2 10.000000 1 7000 7.02 7.02 0 6 i2 10.000000 1 7000 8.07 8.07 0 6 i2 10.000000 1 7000 8.11 8.11 0 6 i2 11.000000 1 7000 7.07 7.07 0 6 i2 11.000000 1 7000 8.00 8.00 0 6 i2 11.000000 1 7000 7.02 7.02 0 6 i2 12.000000 1 7000 8.09 8.09 0 6 i2 12.000000 1 7000 7.00 7.00 0 6 i2 12.000000 1 7000 8.04 8.04 0 6 i2 13.000000 1 7000 7.07 7.07 0 6 i2 13.000000 1 7000 7.00 7.00 0 6 i2 13.000000 1 7000 8.02 8.02 0 6 i2 14.000000 1 7000 7.02 7.02 0 6 i2 14.000000 1 7000 7.07 7.07 0 6 i2 14.000000 1 7000 7.11 7.11 0 6 |