筆友 (電影《我談的那場戀愛》主題曲)

筆友 (電影《我談的那場戀愛》主題曲) is a somber song by MC 張天賦 with a tempo of 104 BPM. It can also be used half-time at 52 BPM or double-time at 208 BPM. The track runs 4 minutes and 21 seconds long with a G key and a major mode. It has low energy and is very danceable with a time signature of 4 beats per bar .