01 허밍버드Composed by 하현상, 손우Lyrics by 하현상Arranged by 구름, 하현상Chorus by 하현상Drum by 이지원Keyboard by 구름Acoustic Guitar by 하현상Electric guitar by 구름Violin by 신예찬Cello by 박찬영String Arranged by 구름Recorded by 구름, 박정호 @Bliss Music, 하현상Digital Editing by 박정호 @Bliss MusicMixed by 박정호 @Bliss MusicMastered by 박정호 @Bliss Music02 WawaComposed by 조곤, 하현상Lyrics by 조곤, 하현상Arranged by 오주원, 조곤, 조창현, 하현상Chorus by 조곤, 하현상Acoustic Guitar by 하현상, 조창현Recorded by 오주원, 조곤, 조창현, 하현상Digital Editing by 박정호 @Bliss MusicMixed by 곽동준, 임우석(Asst.) @small’s studioMastered by 박정호 @Bliss Music