원본: Trouble in Mind Sheet Music by Richard M. Jones. Richard M. Jones. Hal Leonard , Universal. English. Solero.
번역: 핼 레너드, 범용. 영어. 0-7579-0169-7. 리드 시트. Trouble in mind, I'm blue. But I won't be blue always, for the sun will shine in my back door someday.