Dictionary / Vocabulary / 音程が外れる
おんていがはずれる
to be off-pitch; to be off-key; to be out of tune
Also written 音程がはずれる
彼がソロを歌うとき、音程が外れるんじゃないかって、手に汗握っちゃうよね。
When he gets up on stage to sing one of his out-of-tune solos, I get so nervous for him that I get sweaty palms.