如何使用tkinter按钮暂停歌曲窗口声音？

import tkinter as tk
from pydub import AudioSegment
from pydub.playback import play

window = tk.Tk()
window.title("音乐播放器")
window.geometry("300x200")

song = AudioSegment.from_file("song.mp3")  # 替换为你的音频文件路径

def play_pause():
    global song
    if play_btn["text"] == "播放":
        play_btn["text"] = "暂停"
        play(song)
    else:
        play_btn["text"] = "播放"
        play_btn["state"] = "disabled"
        song = song.fade_out(1000)  # 渐变淡出效果
        play(song)
        play_btn["state"] = "normal"

play_btn = tk.Button(window, text="播放", command=play_pause)
play_btn.pack()

window.mainloop()