- C = Do
- D = Re
- E = Mi
- F = Fa
- G = Sol
- A = La
- B = Si
The piano keyboard is made-up 88 of black and white keys. Each keys play a different sound ranging from Do (C) to Si (B), repeating on multiple octaves.
An octave is a large musical interval that separates two of the same notes.
There are seven different natural notes.