一生不變

一生不變 is a melancholic song by Samantha Lam with a tempo of 121 BPM. It can also be used half-time at 61 BPM or double-time at 242 BPM. The track runs 4 minutes and 32 seconds long with a C key and a major mode. It has low energy and is somewhat danceable with a time signature of 4 beats per bar .