pianist

1. (music) A person who plays the piano, particularly with skill or as part of an orchestra.Examples: "By the time she became the world's greatest pianist, she had already practised for thousands of hours on her prized piano."; "Table IV shows that the pianists were significantly better on both motor and perceptual timing than the nonpianists."; "The pianist was Jason Moran, another Houstonian, for whom the past converges with the present: he sometimes likes to find an unobtrusive sequence inside an old standard and turn it into fresh headlines."

2. (WWII) A spy using radio or wireless telegraphy to keep in touch with headquarters during the Second World War.