Knock off and Play by ear

Knock off verb - To bring (as an action or operation) to an immediate end.

Play by ear and knock off are semantically related In some cases you can use "Play by ear" instead a verb "Knock off".

Knock off and play by ear are semantically related in create topic. Sometimes you can use "Knock off" instead a verb phrase "Play by ear", if it concerns topics such as improvise.