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 ...

The layout of a piano keyboard is perhaps the most recognisable pattern in music – a black and white staggered staircase that sits on the front of every piano, organ and synthesizer and – back ...

He has designed a grand with an unprecedented 102 keys. The Stuart and Sons grand piano has 14 more keys than most, which means its lowest and highest notes live very much on the edge.

Step 4: Counting two white notes down the keyboard from a C gets us to the note A. From there, it’s just a question of filling in the gaps to get the names of the other white notes in between. Once we ...