play something by ear2 play something by ear• As he has no political party that can provide him with practical support, he is forced to play it by ear.• At 2, he played the piano by ear.• But the government is having to play it by ear.• He heard jazz records at home when very young and played piano by ear.• Well, she would play it by ear.• So each played it by ear, with resulting policy shifts that often appeared to be not only sudden but incomprehensible.