The phrase 'play it by ear' means to improvise on something that has not been pre planned. The idiom means to perform an act through spontaneous means, do something which has not been rehearsed.
It refers to an act that has not been planned in advance, just performed impromptu as and when a situation calls for it.
It is also used to refer to the act of playing a musical instrument, without the help or written music. For example, "he could play a lot of songs by ear by the time he graduated".
It is also used to describe the process of proceeding in a gradual manner, and improvise if and when needed. For example, "we haven't made any concrete plans yet, so let's play it by the ear for now".
It refers to an act that has not been planned in advance, just performed impromptu as and when a situation calls for it.
It is also used to refer to the act of playing a musical instrument, without the help or written music. For example, "he could play a lot of songs by ear by the time he graduated".
It is also used to describe the process of proceeding in a gradual manner, and improvise if and when needed. For example, "we haven't made any concrete plans yet, so let's play it by the ear for now".