원본: If a Tree Falls Sheet Music by Bruce Cockburn. Bruce Cockburn. Hal Leonard , Universal. English. 0-7579-9155-6.
번역: Rain forest mist and mystery, teaming gree. 브루스 콕번. 핼 레너드, 범용. 영어. Solero. 기타 탭. 보컬. If a tree falls in the forest does anybody hear.
