When I look at the keys I see the computer game, Tetris. There are serveral falling blocks and each block is a different shape. You can rotate the blocks, you make them fall faster or slow them back down, but every second, you’re trying to make the blocks fit together in harmony, in an unbroken straight line.

With the piano, I imagine my fingers as the blocks, there’s several shapes but with four fingers and a thumb there’s only a limited number of shapes I can make with them. Each one of those shapes is a chord, and if I can only move them around the piano, sometimes faster, sometime slower, I can make them all fit together in harmony.

Which sounds simple in practice, like Tetris. But harder and harder in practice as one mistake means it’s game over.