不該

不該 is a melancholic song by Jay Chou with a tempo of 150 BPM. It can also be used half-time at 75 BPM or double-time at 300 BPM. The track runs 4 minutes and 51 seconds long with a F♯/G♭ key and a minor mode. It has high energy and is somewhat danceable with a time signature of 4 beats per bar .