當你需要的時候

當你需要的時候 is a upbeat song by 左小祖咒 with a tempo of 110 BPM. It can also be used half-time at 55 BPM or double-time at 220 BPM. The track runs 4 minutes and 7 seconds long with a B key and a minor mode. It has high energy and is very danceable with a time signature of 4 beats per bar .