행복했던 날들이었다

행복했던 날들이었다 is a upbeat song by DAY6 with a tempo of 103 BPM. It can also be used half-time at 52 BPM or double-time at 206 BPM. The track runs 3 minutes and 25 seconds long with a F key and a minor mode. It has high energy and is very danceable with a time signature of 4 beats per bar .