Who knows if someone has to be a professional note reader in order to play the piano by ear?
I took my keyboard storage (not been there for 5 days) and I know what I have to master the piano and become a professional player notes to play piano by ear?
No. playing an instrument by ear generally means that you never learned to read notes, but not always. To learn to play by ear, an easy method is to simply attempt to play along with a recording. A person that has the natural ability to do this will easily hear the notes that they get right or miss either one. most people i think have the natural ability to find harmony(multiple notes that form a chord or complement one another) which would probably indicate the ability to learn by ear.Reading music however is a skill i would recomend learning because it teaches the basics of why music sounds good to us, thereby giving the skills that make composition naturally easier. good luck