out of tuneAPMplaying or singing higher or lower than the correct musical note 走调 Greg’s bass guitar was out of tune. 格雷格的低音吉他走音了。
out of tune• The beds on Disturbed are all out of tune, too taut or too loose.• The guitar was badly out of tune.• It went out of tune very easily.
→ out of tune at tune1(2)