'지환'의 9번째 싱글, 2018년 4월의 이야기 '아버지에게' [Credit] Lyrics by 지환 Composed by 지환 Arrangement by DUDU (JBIE,이상혁,김은영) Produced by DUDU Music Company Vocal by 지환 A Piano by 지환 String by 김은영 Recorded by JBIE at DUDU Music Company Mixed by JBIE at DUDU Music Company Mastered by JBIE at DUDU Music Company Album Cover Design by 박두환 at Tune Studio