It is best not to try the fast backing track until you can play the tune with the medium backing track.

在你能掌控该速度之前，最好不要选择快速的伴奏。

It has a a really hypnotic backing track that is an absolute delight for the listener.

这首歌的背景有一轨催眠的旋律对听众来说绝对是愉悦的享受.