“우린 어쩌다 헤어진 걸까..” [ Credit ] Composed by 양재선 Lyrics by 빅가이로빈 Arranged by 송영재 Vocal by 차가을 Piano by 송영재 Drum by 송영재 Strings by 송영재 Guitar by 김태양 Bass by 송영재 Recorded by 한준성 @서울스튜디오 Mixed by 허찬구 @knob Studio Mastered by 허찬구 @knob Studio