光的方向 (電視劇《長歌行》片頭主題曲)

光的方向 (電視劇《長歌行》片頭主題曲) is a melancholic song by Zhang Bichen with a tempo of 81 BPM. It can also be used double-time at 162 BPM. The track runs 3 minutes and 5 seconds long with a G key and a minor mode. It has high energy and is not very danceable with a time signature of 4 beats per bar .