What variety of song can be played on a 22 white keys - keyboard?

1. What key only uses white keys?
2. How many white keys should a keyboard have?

What key only uses white keys?

C major is one of the most common key signatures used in music. Its key signature has no flats and no sharps. Its relative minor is A minor and its parallel minor is C minor. On the piano, the C major scale can be played by playing only the white keys starting on C.

How many white keys should a keyboard have?

Today's modern piano has 52 white keys and 36 black keys. The white keys represent the musical tones A, B, C, D, E, F, and G. The black keys differ from the white keys in that they represent half-step intervals — known as sharps and flats — between various notes.