[Credit] track1. 돌고래 Composed by 윤세웅, 이성민, 신명준 Lyrics by 윤세웅, 이성민, 신명준 Arranged by 윤세웅, 이성민, 신명준 Song by 프리한 (윤세웅, 이성민, 신명준) E.guitar by 윤세웅 Bass by 신명준 Drum by 이성민 Piano by 류성은 String by 류성은 Recorded by 누르 (Nur)@MF studio, redbrick studio Mixed by 누르 (Nur)@MF studio Mastered by 권남우 Jacket Design : 우도 studio Woodo Executive producer : 프리한 (윤세웅, 이성민, 신명준)