Music21:去掉写入的midi文件末尾的空数据

from music21 import converter

midi_file = converter.parse("your_midi_file.mid")

tracks = midi_file.tracks

for track in tracks:
    # 获取音轨的事件列表
    events = track.events
    # 去掉末尾的空数据
    while events and events[-1].isDeltaTime():
        events.pop()

modified_midi_file = midi_file.write("modified_midi_file.mid", fmt="midi")