PyQT4中的多线程并发音频文件

Question

我正在开发一个播放音乐文件（由用户选择）的GUI应用程序，同时播放这些音乐文件背后的背景音，同时保持响应式GUI主窗口。我试图使用多个线程迭代一个for循环来调用列表中的每个文件并将其传递给pygame，以便用户可以播放它。我已经用pyQt4研究了多线程并尝试了各种不同的方法，我想这里有人可以帮助我。

这是我以下GUI类的方法：

def playsession(self):
    """ Session Player """
    if self.sessioncreated is True:
        self.statusBar.showMessage("Now Playing...")
        for x, i in enumerate(self.finalmusiclist): # A list of all of the files the user has selected to play
            mainThread = Thread()
            backThread = Thread()
            main = SessionPlayer(i)
            back = SessionPlayer(self.backgroundsoundslist[x]) # Passing In the Background sounds for iterated loop
            main.moveToThread(mainThread)
            back.moveToThread(backThread)
            mainThread.started.connect(main.play)
            mainThread.finished.connect(mainThread.quit)
            backThread.started.connect(back.play)
            ambThread.finished.connect(backThread.quit)
            mainThread.start()
            backThread.start()

我的线程类：

class Thread(QtCore.QThread):
 def __init__(self, parent=None):
    QtCore.QThread.__init__(self, parent)

 def start(self):
    QtCore.QThread.start(self)

 def run(self):
    QtCore.QThread.run(self)

 def __del__(self):
    self.wait()

和QObject我传入我的Thread（）类：

class SessionPlayer(QtCore.QObject):
 def __init__(self, playfile):
    QtCore.QObject.__init__(self)
    self.playfile = playfile

 @QtCore.pyqtSlot()
 def play(self):
    """Method To Play Music Files With Background Simultaneously"""
    pygame.init()
    pygame.mixer.init(FREQ, BITSIZE, CHANNELS, BUFFER)
    nextsnd = pygame.mixer.Sound(self.playfile)
    nextsnd.play()
    while pygame.mixer.get_busy():
        pass
    self.finished.emit()

 def __del__(self):
    self.wait()

任何和所有帮助将不胜感激！