장희원 [이렇게까지] 불안한 마음, 변해가는 나, 다 괜찮을 것 같아. [Credit] Composed by 장희원 Lyrics by 장희원 Arranged by 장희원 BGVs by 장희원 Piano performed by 장희원 Drum & Programming performed by 장희원 Bass performed by 엄태환 Guitar performed by 인챈터 Digital Editing by 곽동준 Recorded by 장희원 Mixed by 곽동준 Mastered by 곽동준 Artwork by SOKKI