사랑의 서약

사랑의 서약 is a somber song by Kim Kwang Jin with a tempo of 73 BPM. It can also be used double-time at 146 BPM. The track runs 4 minutes and 12 seconds long with a C♯/D♭ key and a major mode. It has low energy and is not very danceable with a time signature of 4 beats per bar .