def METHOD_NAME(self):
    """Play."""
    if not self.playing and self._mixer is not None:
        if self.loop:
            self._action = self._mixer.play_ringbuffer(
                self._ring, start=self._start_time)
        else:
            self._action = self._mixer.play_buffer(
                self._data, self._data.shape[1], start=self._start_time)