Music Director 정재형 All Composed, Orchestrated and Conducted by 정재형 Music Co-produced by 이성훈 Rhythm and Programming by 이성훈 Computer Programming & Sound Design by Junø
"꽃이지다" 정재형 feat 조원선 (Rollercoaster) Composed and Words by 정재형
Orchestra The Strings Bandoneon & Harmonica by 하림 Percussion by 박윤 Flute 김란도 Oboe 임수미 Clarinet 하지윤 Vocal 신연아 (Bigmama) Piano 정재형 Classic Guitar 이성진 Orchestration Assisted by 황현
Mixing Engineer 정두석 Recording Engineer 정두석, 강해구, 하정수, 김균중 Assistant Engineer 김한별, 김갑수, 김기란 Pro-Tools Edit 김영식, 이성훈 Recording Studio Booming Sound, Studio BL Mastering 전훈 at SonicKorea Executive Producer 함용일 at Seoulrecords