耳みみコピ

noun

playing by ear; transcribing by ear

Colloquial term used among musicians for learning or transcribing music by listening, without sheet music.

• 彼かれは耳みみコピで難むずかしいギターソロを完かん璧ぺきに弾ひいた。

  He played the difficult guitar solo perfectly by ear.

• 耳みみコピで採さい譜ふするのは時じ間かんがかかるけど、耳みみが鍛きたえられる。

  Transcribing by ear takes time, but it trains your ear.