Just fo nothing
A piece of music is composed of a series of notes. These notes are organized into sets of 12 notes called octaves, and each of these 12 notes has a name. If you sit down at a piano, you'll see that it has 88 keys, 52 white and 36 black, and that each of these keys produces a different note. The white keys all have one-letter names; the first one on the left (lowest note) is called A, the next one up is B, and so on. The seventh white key is called G, and the next white key, the eighth, is also called A; it begins the second octave. The ninth white key is B, the tenth C, and so on, until the 52nd and last white note, which is a C.