So as you can see, there are 7 letters in the piano: A, B, C, D, E, F, G. The middle on a real keyboard there is a C in the middle this is called a middle C. A sharp (#) in piano is the black and a flat in piano is the white keys. I will be writing notes for songs that I know and I will add new notes for songs that I don't know now but I'm workin' on. Scroll down for notes.