spiffyscore

Check-in [5aa14570f1]
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Check-in [5aa14570f1]

Overview
Comment:Now handles chords
Timelines: family | ancestors | descendants | both | ply
Files: files | file ages | folders
SHA1: 5aa14570f13983c6b441c37c2ebc5587e39f5d48
User & Date: spiffytech@gmail.com on 2010-11-13 00:12:38.000
Other Links: branch diff | manifest | tags
Context
2010-11-13
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
20:30
Now generates scores until it makes one 50 notes ling check-in: e425f3d6c2 user: spiffytech@gmail.com tags: ply
Changes
Side-by-Side Diff Ignore Whitespace Patch
Modified cfg.py from [d8090f9de3] to [43fd8f5bb3]. 
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#!/usr/bin/env python

import os
import random
import sys
import time
random.seed(time.time())

def main():
    key = "C"
grammars = {
    "u": ["I V I IV u", "I IV", "I VII IV"  , "e"],
    "e": [""],
}

    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 main():
def compose_piece(key, grammars, chords=False):
    key = "G#"
    score = ""
    while len(score.split()) < 50:
    while len(score.split()) < 15:
        score = "u u u"
        score = generate_score(score)
    score = keyify_score(score, key)
        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):
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 keyify_score(score, key):
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])
        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",
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        "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 %f 2 7000 %d.%s %d.%s 0 6" % (t, random.choice([8,9]), note, random.choice([8,9]), note))
        t += .25
            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]. 
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f1  0   256 10  1 0 3   ; sine wave function table
i2 0.000000 2 7000 8.08 8.08 0 6
i2 0.250000 2 7000 9.03 9.03 0 6
i2 0.500000 2 7000 9.08 8.08 0 6
i2 0.750000 2 7000 8.01 9.01 0 6
i2 1.000000 2 7000 8.08 8.08 0 6
i2 1.250000 2 7000 9.03 9.03 0 6
i2 1.500000 2 7000 9.08 9.08 0 6
i2 1.750000 2 7000 9.01 9.01 0 6
i2 2.000000 2 7000 8.08 9.08 0 6
i2 2.250000 2 7000 8.03 9.03 0 6
i2 2.500000 2 7000 9.08 9.08 0 6
i2 2.750000 2 7000 8.01 8.01 0 6
i2 3.000000 2 7000 9.08 9.08 0 6
i2 3.250000 2 7000 8.03 8.03 0 6
i2 3.500000 2 7000 8.08 8.08 0 6
i2 3.750000 2 7000 9.01 9.01 0 6
i2 4.000000 2 7000 9.08 9.08 0 6
i2 4.250000 2 7000 8.03 9.03 0 6
i2 4.500000 2 7000 8.08 9.08 0 6
i2 4.750000 2 7000 8.01 9.01 0 6
i2 5.000000 2 7000 8.08 8.08 0 6
i2 5.250000 2 7000 8.03 9.03 0 6
i2 5.500000 2 7000 9.08 8.08 0 6
i2 5.750000 2 7000 9.01 9.01 0 6
i2 6.000000 2 7000 8.08 8.08 0 6
i2 6.250000 2 7000 9.03 8.03 0 6
i2 6.500000 2 7000 8.08 8.08 0 6
i2 6.750000 2 7000 8.01 9.01 0 6
i2 7.000000 2 7000 8.08 9.08 0 6
i2 7.250000 2 7000 9.03 8.03 0 6
i2 7.500000 2 7000 8.08 9.08 0 6
i2 7.750000 2 7000 8.01 9.01 0 6
i2 8.000000 2 7000 8.08 8.08 0 6
i2 8.250000 2 7000 8.03 8.03 0 6
i2 8.500000 2 7000 9.08 8.08 0 6
i2 8.750000 2 7000 9.01 9.01 0 6
i2 9.000000 2 7000 9.08 9.08 0 6
i2 9.250000 2 7000 9.03 8.03 0 6
i2 9.500000 2 7000 9.08 9.08 0 6
i2 9.750000 2 7000 8.01 8.01 0 6
i2 10.000000 2 7000 8.08 8.08 0 6
i2 10.250000 2 7000 8.03 9.03 0 6
i2 10.500000 2 7000 8.08 9.08 0 6
i2 10.750000 2 7000 8.01 9.01 0 6
i2 11.000000 2 7000 8.08 8.08 0 6
i2 11.250000 2 7000 8.03 9.03 0 6
i2 11.500000 2 7000 8.08 9.08 0 6
i2 11.750000 2 7000 9.01 8.01 0 6
i2 12.000000 2 7000 8.08 8.08 0 6
i2 12.250000 2 7000 9.03 8.03 0 6
i2 12.500000 2 7000 8.08 8.08 0 6
i2 12.750000 2 7000 9.01 9.01 0 6
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