import rhythms as rhy
import pitchhelpers as pth
#Etude 1: up and down the scale
durs = fh.concat([[0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,1.0] for i in range(0,8)])
degs = fh.concat([map(lambda j: j + i, [0,1,2,3,4,3,2,1,0]) for i in range(0,8)])
score = mh.listsDegreesToPart(degs, durs)
score.insert(0, meter.TimeSignature('5/4'))
#score.show('musicxml')
#Etude 2: up and down different scales
durs = fh.concat([[0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,1.0] for i in range(0,8)])
degs = fh.concat([sc.degreesToNotes([0,1,2,3,4,3,2,1,0], scale = map(lambda j: j + i, scales["major"])) for i in scales["major"] + [12]])
score = mh.listsToPart(degs, durs)
score.insert(0, meter.TimeSignature('5/4'))
#score.show('musicxml')
#Etude 3: up and down scale with intervals of 2
degs = fh.concat([[j, j + 2] for j in range(0,7)])
degs.append(7)
degs.extend(fh.concat([[j, j - 2] for j in range(7,0,-1)]))
degs.append(0)
durs = [1 for i in range(0, 14)] + [2] + [1 for i in range(0, 14)] + [2]
score = mh.listsDegreesToPart(degs, durs)
#score.show('musicxml')
#Etude 4: up and down the scale with intervals of 2, plus a random walk in the middle of each measure
degs = []
durs = fh.concat([1, 0.5, 0.5, 0.5, 0.5, 1] for i in range(0,7)) + [3,1] + fh.concat([1, 0.5, 0.5, 0.5, 0.5, 1] for i in range(0,7)) + [2]
measures[-1].append(measure)
for measure in measures[-1]:
if type(measure) == stream.Measure:
elements = measure.elements
for element in elements:
if type(element) == stream.Voice:
new_elems = element.elements
for elem in new_elems:
if type(elem) == note.Note:
pits[-1].append(elem.midi)
durs[-1].append(elem.quarterLength)
elif type(elem) == note.Rest:
pits[-1].append(-36)
durs[-1].append(elem.quarterLength * -1)
elif type(element) == note.Note:
pits[-1].append(element.midi)
durs[-1].append(element.quarterLength)
elif type(element) == note.Rest:
pits[-1].append(-36)
durs[-1].append(element.quarterLength * -1)
if type(element) == chord.Chord:
pits[-1].append(tuple([i.midi for i in element.pitches]))
durs[-1].append(element.quarterLength)
s = stream.Stream()
for i in range(0, len(pits)):
s.insert(0, mh.listsToPart(pits[i], durs[i]))
s.show()
# -*- coding: utf-8 -*-
"""
Created on Tue Nov 25 15:54:28 2014
@author: halley
"""
from nltk.book import *
import nltk
import music21helpers as mh
import sys
f = open(sys.argv[1], 'w+')
text = f.read()
letter_map = {'a':0, 'e':12, 'i':7, 'o':5, 'u':4, 's':2, 'r':9, 'l':11}
pits = []
for letter in text:
if letter in letter_map:
pits.append(letter_map[letter] + 48)
else:
pits.append(62)
part = mh.listsToPart(pits, [0.5 for i in pits])
part.write(fp=sys.argv[2], fmt='xml')
