Pianist

A pianist (US: /pˈænɪst/ pee-AN-ist, also /ˈpənɪst/ PEE-ə-nist) is an individual musician who plays the piano. Since most forms of Western music can make use of the piano, pianists have a wide repertoire and a wide variety of styles to choose from, among them traditional classical music, jazz, blues, and all sorts of popular music, including rock and roll. Most pianists can, to an extent, easily play other keyboard-related instruments such as the synthesizer, harpsichord, celesta, and the organ.

Sergei Rachmaninoff at the piano
Motion capture of two pianists' fingers playing the same piece (slow motion, no sound).[1]