Comment by john61

There has always been a very old method to learn music without sheet music. It is called playing by ear. It is incredible that we have a word for that. Because nobody is saying he is learning to talk by ear. Because talking and making music is an acoustic thing, and the natural thing is to use primarily your ear for that. The eye can be helpful, be it sheet music or a midi visualisation like this app. But an eye can not hear music.