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#!/usr/bin/env python
import os
import random
import sys
import time
random.seed(time.time())
import parse
def main():
key = "A"
note_grammars = {
}
chord_grammars = {
"u": ['"I" "IV" "V" "IV" "I" u u', '"I" "VII" "IV" u u', '"I" "V" "IV" u u', "e"],
},
"score": "u u u",
},
"rhythm": {
"csound_parameters": {
"instrument": 1,
},
"grammars": {
"u": ['"I" "IV"/2 "V"2 "IV" "I" u u', '"I" "VII" "IV" u u', '"I" "V" "IV" u u', "e"],
"e": [""]
},
"score": "u u u",
},
},
"b": {
"melody": { # Instrument 'melody'
"csound_parameters": {
"instrument": 1,
},
"grammars": { # Notes for this instrument to use in this piece
"u": ["I V I I/2 IV/2 u u", "I4 IV u u", "I IV IV VI V u u" , "e"],
"e": [""],
},
"score": "u u u",
},
"rhythm": {
"csound_parameters": {
"instrument": 1,
},
"grammars": {
"u": ['"I" "IV"/2 "V"2 "IV" "I" u u', '"I" "VII" "IV" u u', '"I" "V" "IV" u u', "e"],
"e": [""]
},
"score": "u u u",
},
},
}
compose_piece(key, note_grammars)
compose_piece(key, chord_grammars, chords=True)
def compose_piece(key, grammars, chords=False):
score = ""
while len(score.split()) < 10:
score = "u u u"
score = generate_score(score, grammars)
score = parse.parse(score)
score = transliterate_score(score, key, chords)
score = generate_csound_score(score)
for line in score:
for line in final_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)
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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 len(score) > 200:
if len(score.split()) > 200:
score = score.replace("u", "")
score = score.replace("e", "")
return score
if found_substitution is False:
break
return score
def transliterate_score(score, key, chords=False):
def transliterate_score(score, key):
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 i in range(len(score)):
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