01 아홉 (Feat. 눈 (Nuun)) 작사 : 원써겐 / 작곡 : 원써겐, Donnie J / 편곡 : 원써겐 [Album Credit] Executive Producer 박진우. Donnie J for neuron music Produced by 원써겐 Written by 원써겐 Composed by 원써겐, Donnie J Arranged by 원써겐 Vocal by 눈 (Nuun) Rap by 원써겐 Guitars by 정수완 Strings by Joseph K All Keyboards by 원써겐 Drum Programming by 원써겐 Recording Engineer Make Will Mixing Engineer Make Will Mastering Engineer Make Will Album Design Pink Pig A&R 홍희정 Management 진영민