指練習的なスコアを生成するMusic21サンプル

tatMusic21.py

import random
import copy

from music21 import *


def f_major(melo, baseNote):
    fn = note.Note(baseNote)
    fn.quarterLength = 1 / 6
    melo.append(fn)
    fn = fn.transpose(2)
    melo.append(fn)
    fn = fn.transpose(3)
    melo.append(fn)
    fn = fn.transpose(4)
    melo.append(fn)
    fn = fn.transpose(-3)
    melo.append(fn)
    fn = fn.transpose(-4)
    melo.append(fn)


def init():
    # get environment
    env = environment.Environment()

    # check the path
    print('Environment settings:')
    print('musicXML:  ', env['musicxmlPath'])
    print('musescore: ', env['musescoreDirectPNGPath'])

    # set path if necessary
    env['musicxmlPath'] = 'C:/Program Files/MuseScore 4/bin/MuseScore4.exe'
    env['musescoreDirectPNGPath'] = 'C:/Program Files/MuseScore 4/bin/MuseScore4.exe'


def make_hanon():
    melo = stream.Stream()
    for num in range(16):
        f_major(melo, 60 + num)

    melo.show()
    
if __name__ == '__main__':
    init()
    make_hanon()