當愛已成往事

當愛已成往事 is a melancholic song by Sandy 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 39 seconds long with a G♯/A♭ key and a major mode. It has average energy and is not very danceable with a time signature of 4 beats per bar .