play (something) by ear
US /pleɪ ˈsʌm.θɪŋ baɪ ɪr/
UK /pleɪ ˈsʌm.θɪŋ baɪ ɪr/

1.
bertindak mengikut keadaan, membuat keputusan secara spontan
to decide how to deal with a situation as it develops, rather than by having a fixed plan
:
•
We don't have a set schedule for the trip; we'll just play it by ear.
Kami tiada jadual tetap untuk perjalanan; kami akan bertindak mengikut keadaan sahaja.
•
I can't give you a definite answer now, let's just play it by ear and see how things go.
Saya tidak boleh beri jawapan muktamad sekarang, mari kita bertindak mengikut keadaan dan lihat bagaimana keadaannya.
2.
bermain dengan telinga, bermain tanpa notasi
to play a piece of music without having seen it written down
:
•
She can play any song by ear after hearing it once.
Dia boleh memainkan mana-mana lagu dengan telinga selepas mendengarnya sekali.
•
Many jazz musicians prefer to play by ear rather than read sheet music.
Ramai pemuzik jazz lebih suka bermain dengan telinga daripada membaca not muzik.