- play something by ear
- play something by ear1. to be able to play a piece of music after just listening to it a few times, without looking at the notes. •
I can play “Stardust” by ear.
•Some people can play Chopin's music by ear.
2. and play by ear to play a musical instrument well, without formal training. •John can play the piano by ear.
•If I could play by ear, I wouldn't have to take lessons—or practice!
3. to improvise; to decide one's next steps after one is already involved in a situation. •If we go into the meeting unprepared, we'll have to play everything by ear.
•He never prepared his presentations. He always played things by ear.
Dictionary of American idioms. 2013.