試試這個(gè)代碼：

import pretty_midi

import copy

pitch_cutoff = 65

mid = pretty_midi.PrettyMIDI('my_file.mid')

low_notes = copy.deepcopy(mid)

high_notes = copy.deepcopy(mid)

for instrument in low_notes.instruments:

    for note in instrument.notes:

        if note.pitch > pitch_cutoff:

            note.velocity = 0

for instrument in high_notes.instruments:

    for note in instrument.notes:

        if note.pitch < pitch_cutoff:

            note.velocity = 0

low_notes.write("low_notes.mid")

high_notes.write("high_notes.mid")

它使用該pretty_midi模塊將 MIDI 文件拆分為兩個(gè)不同的文件。名為“high_notes.mid”的文件將僅在您設(shè)置變量的內(nèi)容上方包含注釋pitch_cutoff，而“l(fā)ow_notes.mid”僅在其下方包含注釋。只需將“my_file.mid”更改為您的文件名并嘗試一下即可。如果您有任何疑問，請(qǐng)告訴我。