유일무이 로맨스 X 베이식(Basick) 컬래버 음원 '사다리' Lyrics by Basick, 전현재 Composed by Basick, 전현재, Neulbo, 서신웅, WWWAVE (PAPERMAKER) Arranged by Neulbo, 서신웅, WWWAVE (PAPERMAKER) Rap by Basick Piano by 로지 Synthesizer by 하임 Guitar by 서신웅 Bass by 김주완 Drum by Neulbo Recorded by Basick at OUTLIVE Studio Mixed by 마스터키 at 821 Sound Mastered by 마스터키 at 821 Sound