midi 文件读取与写入（python mido）

2023-12-01 04:04
文章标签 python 读取 写入 midi mido

本文主要是介绍midi 文件读取与写入（python mido），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

midi 文件读取与写入

  • 地址
  • 第一种方法
  • 第二种方法
  • 读取法

地址

https://codeleading.com/article/90425033665/

第一种方法

from mido import Message, MidiFile, MidiTrack# 把音名、唱名等换成 MIDO相对应的数字
# 已完成
def num(yin):if yin == "A0" or yin == "a0":  # 最低音 lareturn 21if yin == "B0" or yin == "b0":  # 最低的sireturn 23if yin == "C1" or yin == "c1":  # 低三个八度 doreturn 24if yin == "D1" or yin == "d1":  # rereturn 26if yin == "E1" or yin == "e1":  # mireturn 28if yin == "F1" or yin == "f1":  # fareturn 29if yin == "G1" or yin == "g1":  # so 或者说 solreturn 31if yin == "A1" or yin == "a1":  # lareturn 33if yin == "B1" or yin == "b1":  # sireturn 35if yin == "C2" or yin == "c2":  # 低两个八度 doreturn 36if yin == "D2" or yin == "d2":  # rereturn 38if yin == "E2" or yin == "e2":  # mireturn 40if yin == "F2" or yin == "f2":  # fareturn 41if yin == "G2" or yin == "g2":  # so 或者说 solreturn 43if yin == "A2" or yin == "a2":  # lareturn 45if yin == "B2" or yin == "b2":  # sireturn 47if yin == "C3" or yin == "c3" or yin == ".do" or yin == ".1" or yin == ".Do" or yin == ".DO":  # 低八度   doreturn 48if yin == "D3" or yin == "d3" or yin == ".re" or yin == ".2" or yin == ".Re" or yin == ".RE":  # rereturn 50if yin == "E3" or yin == "e3" or yin == ".mi" or yin == ".3" or yin == ".Mi" or yin == ".MI":  # mireturn 52if yin == "F3" or yin == "f3" or yin == ".fa" or yin == ".4" or yin == ".Fa" or yin == ".FA":  # fareturn 53if yin == "G3" or yin == "g3" or yin == ".so" or yin == ".sol" or yin == ".5" or yin == ".So" or yin == ".Sol" or yin == ".SO" or yin == ".SOL":  # so 或者说 solreturn 55if yin == "A3" or yin == "a3" or yin == ".la" or yin == ".6" or yin == ".La" or yin == ".LA":  # lareturn 57if yin == "B3" or yin == "b3" or yin == ".si" or yin == ".7" or yin == ".Si" or yin == ".SI":  # sireturn 59# 中音区if yin == "C4" or yin == "c4" or yin == "C" or yin == "c" or yin == "1" or yin == 1 or yin == "do" or yin == "Do" or yin == "DO":  # 中音doreturn 60if yin == "D4" or yin == "d4" or yin == "D" or yin == "d" or yin == "2" or yin == 2 or yin == "re" or yin == "Re" or yin == "RE":  # 中音rereturn 62if yin == "E4" or yin == "e4" or yin == "E" or yin == "e" or yin == "3" or yin == 3 or yin == "mi" or yin == "Mi" or yin == "MI":  # 中音mireturn 64if yin == "F4" or yin == "f4" or yin == "F" or yin == "f" or yin == "4" or yin == 4 or yin == "fa" or yin == "Fa" or yin == "FA":  # 中音fareturn 65if yin == "G4" or yin == "g4" or yin == "G" or yin == "g" or yin == "5" or yin == 5 or yin == "so" or yin == "sol" or yin == "So" or yin == "Sol" or yin == "SO" or yin == "SOL":  # 中音so  或者说 solreturn 67if yin == "A4" or yin == "a4" or yin == "A" or yin == "a" or yin == "6" or yin == 6 or yin == "la" or yin == "La" or yin == "LA":  # 中音lareturn 69if yin == "B4" or yin == "b4" or yin == "B" or yin == "b" or yin == "7" or yin == 7 or yin == "si" or yin == "Si" or yin == "SI":  # 中音sireturn 71# 高音区if yin == "C5" or yin == "c5" or yin == "1." or yin == "do." or yin == "Do." or yin == "DO.":  # doreturn 72if yin == "D5" or yin == "d5" or yin == "2." or yin == "re." or yin == "Re." or yin == "RE.":  # rereturn 74if yin == "E5" or yin == "e5" or yin == "3." or yin == "mi." or yin == "Mi." or yin == "MI.":  # mireturn 76if yin == "F5" or yin == "f5" or yin == "4." or yin == "fa." or yin == "Fa." or yin == "FA.":  # fareturn 77if yin == "G5" or yin == "g5" or yin == "5." or yin == "so." or yin == "So." or yin == "SO." or yin == "sol." or yin == "Sol." or yin == "SOL.":  # so 或者说是 solreturn 79if yin == "A5" or yin == "a5" or yin == "6." or yin == "la." or yin == "La." or yin == "LA.":  # lareturn 81if yin == "B5" or yin == "b5" or yin == "7." or yin == "si." or yin == "Si." or yin == "SI.":  # sireturn 83# 从此，退出常用区# 高两个八度if yin == "C6" or yin == "c6":  # doreturn 84if yin == "D6" or yin == "d6":  # rereturn 86if yin == "E6" or yin == "e6":  # mireturn 88if yin == "F6" or yin == "f6":  # fareturn 89if yin == "G6" or yin == "g6":  # soreturn 91if yin == "A6" or yin == "a6":  # lareturn 93if yin == "B6" or yin == "b6":  # sireturn 95# 高三个八度if yin == "C7" or yin == "c7":  # doreturn 96if yin == "D7" or yin == "d7":  # rereturn 98if yin == "E7" or yin == "e7":  # mireturn 100if yin == "F7" or yin == "f7":  # fareturn 101if yin == "G7" or yin == "g7":  # soreturn 103if yin == "A7" or yin == "a7":  # lareturn 105if yin == "B7" or yin == "b7":  # sireturn 107# 高四个八度# 最高音doif yin == "C8" or yin == "c8" or yin == "highestdo" or yin == "hdo" or yin == "h1" or yin == "highest1":  # doreturn 108if yin == '0':return 1return Nonedef make_track(_score, program=0):track = MidiTrack()no = programmeta_time = 60 * 60 * 10 / 75track.append(Message('program_change', channel=0, program=no, time=0))track.append(Message('note_on', note=0, velocity=64, time=32, channel=0))track.append(Message('note_off', note=0, velocity=127, time=32, channel=0))last = 0for i in range(0, len(_score)):ch = _score[i]if ch[0] == '$':no = int(ch[1:])continueif ch == '_':track.append(Message('note_off', note=last, velocity=127, time=round(1 * meta_time), channel=0))continueif ch == '__':track.append(Message('note_off', note=last, velocity=127, time=round(2 * meta_time), channel=0))continueif num(ch):track.append(Message('program_change', channel=0, program=no, time=0))track.append(Message('note_on', note=num(ch), velocity=64, time=0, channel=0))last = num(ch)try:if num(score[i + 1]):track.append(Message('note_off', note=num(ch), velocity=127, time=round(0.5 * meta_time), channel=0))except Exception:passreturn trackscore = [# 乐谱'$3', '1.', '_', '2.', '_', '3.', '2.', '1.', '7', '_', '6', '5', '6', '__', '0','$8', '1.', '2.', '3.', '2.', '1.', '7', '_', '5', '4.', '2.', '3.', '__', '0''$11', '1.', '2.', '3.', '2.', '1.', '7','_', '5', '2.', '2.', '_', '1.', '7', '6', '__', '0','$12', '6', '7', '1.', '7', '1.', '2.', '_', '1.', '7', '1.', '__', '0','$44', '3.', '_', '3.', '3.', '_', '2.', '_', '5.', '_', '2.', '2.', '__', '0','$25', '3.', '3.', '4.', '3.', '2', '_', '7', '1.', '2.', '3.', '_', '3.', '3.', '_', '2.', '_', '5.', '_', '2.','2.', '__', '0','$66', '2.', '1.', '7', '5', '__', '0','$78', '3', '3', '1.', '_', '1.', '1.', '7', '6', '5', '__','$53', '3', '4', '5', '4', '__', '6', '_', '5', '4', '3', '__','$18', '3', '2', '1', '__', '1', '_', '6', '_', '5', '_', '4', '_', '3', '_', '5', '_', '2', '__','$16', '3', '3', '1.', '_', '1.', '1.', '7', '6', '5', '__','$22', '3', '4', '5', '4', '__', '6', '_', '5', '4', '3', '__','$88', '3', '2', '1', '__', '1', '_', '6', '_', '5', '__','$72', '3', '4', '5', '4', '_', '5', '_', '3', '3', '6', '__','$23', '6', '_', '6', '6', '7', '1.', '5', '_', '5', '3', '4', '5', '_', '0', '5', '4', '3', '1', '__','$19', '1', '_', '4', '3', '4', '_', '0', '4', '5', '4', '5', '__','$1', '5', '6', '_', '0', '6', '7', '1.', '7', '__','$74', '1.', '_', '2.', '_', '3.', '2.', '1.', '7', '_', '6', '5', '6', '__', '0','$114', '1.', '2.', '3.', '2.', '1.', '7', '_', '5', '4.', '2.', '3.', '__', '0''$2', '1.', '2.', '3.', '2.', '1.','7', '_', '5', '2.', '2.', '_', '1.', '7', '6', '__', '0','$5', '6', '7', '1.', '7', '1.', '2.', '_', '1.', '7', '1.', '_','$60', '1.', '_', '2.', '_', '3.', '2.', '1.', '7', '_', '6', '5', '6', '__', '0','$61', '1.', '2.', '3.', '2.', '1.', '7', '_', '5', '4.', '2.', '3.', '__', '0''$77', '1.', '2.', '3.', '2.', '1.','7', '_', '5', '2.', '2.', '_', '1.', '7', '6', '__', '0','$69', '6', '7', '1.', '7', '1.', '2.', '_', '1.', '7', '1.', '__', '0',]
score2 = [# 鼓声'$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_','$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_', '$118', '.2', '_', '$116', '.1', '.1', '_','$118', '.2', '_',
]
score3 = [# 其他旁白音效"$102", ".1", '__', '__', ".2", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".4", '__', '__', ".5", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".2", '__', '__', ".6", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".3", '__', '__', ".3", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".2", '__', '__', ".4", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".5", '__', '__', ".1", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".7", '__', '__', ".3", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".6", '__', '__', ".3", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',"$102", ".2", '__', '__', ".2", '__', '__', ".1", '__', '__', "$101", ".1", '__', '__', ".2", '__', '__',
]
meta_time = 60 * 60 * 10 / 75
mid = MidiFile()
track1 = make_track(score)
track2 = make_track(score2)
track3 = make_track(score3)
mid.tracks.append(track1)
mid.tracks.append(track2)
mid.tracks.append(track3)
mid.save("music.mid")  # 写入midi文件
# os.system("music.mid")  # 直接打开文件

第二种方法

from mido import Message, MidiFile, MidiTrack
# from play import play_mididef play_note(note, length, track, base_num=0, delay=0, velocity=1.0, channel=0):meta_time = 60 * 60 * 10 / bpmmajor_notes = [0, 2, 2, 1, 2, 2, 2, 1]base_note = 60track.append(Message('note_on', note=base_note + base_num * 12 + sum(major_notes[0:note]), velocity=round(64 * velocity),time=round(delay * meta_time), channel=channel))track.append(Message('note_off', note=base_note + base_num * 12 + sum(major_notes[0:note]), velocity=round(64 * velocity),time=round(meta_time * length), channel=channel))def verse(track):play_note(1, 0.5, track)  # 小play_note(2, 0.5, track)  # 时play_note(1, 1.5, track)  # 候play_note(7, 0.25, track, -1)  # 妈play_note(6, 0.25, track, -1)  # 妈play_note(5, 0.5, track, -1, channel=1)  # 对play_note(3, 0.5, track, channel=1)  # 我play_note(3, 2, track, channel=1)  # 讲play_note(3, 0.5, track)  # 大play_note(4, 0.5, track)play_note(3, 1.5, track)  # 海play_note(2, 0.25, track)  # 就play_note(1, 0.25, track)  # 是play_note(6, 0.5, track, -1, channel=1)  # 我play_note(2, 0.5, track, channel=1)  # 故play_note(2, 2, track, channel=1)  # 乡play_note(7, 0.5, track, -1)  # 海play_note(1, 0.5, track)play_note(7, 1.5, track, -1)  # 边play_note(6, 0.25, track, -1)play_note(5, 0.25, track, -1)play_note(5, 0.5, track, -1, channel=1)  # 出play_note(2, 0.5, track, channel=1)play_note(2, 2, track, channel=1)  # 生play_note(4, 1.5, track)  # 海play_note(3, 0.5, track)  # 里play_note(1, 0.5, track)  # 成play_note(6, 0.5, track, -1)play_note(1, 3, track)  # 长def chorus(track, num):play_note(5, 0.5, track)  # 大play_note(6, 0.5, track)play_note(5, 1.5, track)  # 海play_note(3, 0.5, track)  # 啊play_note(5, 0.5, track, channel=1)  # 大play_note(6, 0.5, track, channel=1)play_note(5, 2, track, channel=1)  # 海play_note(6, 0.5, track)  # 是（就）play_note(5, 0.5, track)  # 我（像）play_note(4, 0.5, track)  # 生（妈）if num == 1:play_note(1, 0.25, track, channel=1)  # 活play_note(1, 0.25, track, channel=1)  # 的if num == 2:play_note(1, 0.5, track, channel=1)  # (妈)play_note(6, 0.5, track, channel=1)  # 地（一）play_note(5, 0.5, track, channel=1)play_note(5, 3, track, channel=1)  # 方（样）play_note(3, 0.5, track)  # 海（走）play_note(4, 0.5, track)  # 风（遍）play_note(3, 1.5, track)  # 吹（天）play_note(2, 0.25, track)  # (涯)play_note(1, 0.25, track)play_note(6, 0.5, track, -1, channel=1)  # 海（海）play_note(2, 0.5, track, channel=1)  # 浪play_note(2, 2, track, channel=1)  # 涌（角）play_note(4, 0.5, track)  # 随（总）play_note(5, 0.5, track)  # 我（在）play_note(4, 0.5, track)  # 漂（我）play_note(3, 0.5, track)  # 流（的）play_note(1, 0.5, track, channel=1)  # 四（身）play_note(6, 0.5, track, -1, channel=1)play_note(1, 3, track, channel=1)  # 方（旁）mid = MidiFile()  # 创建MidiFile对象
track = MidiTrack()  # 创建音轨
mid.tracks.append(track)  # 把音轨加到MidiFile对象中bpm = 75# 向音轨添加
#    Message对象（包括program_change、note_on、note_off等）
#    MetaMessage对象（用以表示MIDI文件的节拍、速度、调式等属性）
track.append(Message('program_change', program=12, time=0))
track.append(Message('note_on', note=64, velocity=64, time=32))
track.append(Message('note_off', note=64, velocity=127, time=32))verse(track)  # 主歌
chorus(track, num=1)  # 副歌1
chorus(track, num=2)  # 副歌2mid.save('new_song.mid')
# play_midi('new_song.mid')

读取法

import mido
mid = mido.MidiFile("music.mid")
for i, track in enumerate(mid.tracks):#enumerate()：创建索引序列，索引初始为0print('Track {}: {}'.format(i, track.name))for msg in track:#每个音轨的消息遍历print(msg)

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