A typical piano has 88 keys spanning just over seven octaves. There are other, smaller keyboards or synthesizers that have fewer keys – most come in increments of 25, 32, 49, 61 or 72 keys.

The three white notes surrounding the two black keys are C, D, and E, and the four white notes surrounding the three black keys are F, G, A and B. So, if you count eight keys right from Middle C (or, ...

A typical piano has 88 keys spanning just over seven octaves. There are other, smaller keyboards or synthesizers that have fewer keys – most come in increments of 25, 32, 49, 61 or 72 keys.

Instead of hitting one key and getting one note, Arnalds can hit one key and get a multitude of unanticipated notes. That does pose one problem, though: There's no way to replicate what the piano ...

Whether black-and-white or white-and-black, separating the whole and half tones into repeating patterns of 12 notes makes it much easier for a pianist to play and to find the right notes on the full ...