當世界背對我 (電影《生而為人》概念曲)

當世界背對我 (電影《生而為人》概念曲) is a somber song by 蔡宥綺 with a tempo of 133 BPM. It can also be used half-time at 67 BPM or double-time at 266 BPM. The track runs 3 minutes and 54 seconds long with a A♯/B♭ key and a minor mode. It has average energy and is somewhat danceable with a time signature of 3 beats per bar .