Piano

A piano was a type of Human musical instrument operated by a keyboard interface. Traditionally, the keys were made of ivory. (TOS novel: The Fearful Summons)

During the 1940s, President Harry S. Truman was well known for playing the piano. In July 1947, General Rex Denning referred to him contemptuously as "that little piano-playing Democrat." (DS9 episode: "Little Green Men")

In 2269, an electronic piano was played during a Christmas party aboard the USS Enterprise. (TAS - Log Two novelization: The Survivor)

Benjamin Sisko learned to play the piano when he was a child. He played on a piano owned by his father Joseph in his family home. (DS9 episodes: "Image in the Sand", "Shadows and Symbols", DS9 novel: Fearful Symmetry)

Joseph Sisko was also able to play the piano himself. (DS9 novel: The Fall of Terok Nor)

In 2374, Odo used a player piano while learning from Vic Fontaine. (DS9 episode: "His Way")

In 3189, Paul Stamets played piano while Adira Tal played the cello aboard the USS Discovery-A.(DSC episode: "The Sanctuary")

Appendices

musical instruments
accordion • Appalachian dulcimer • bagpipes • balalaika • banjo • bassoon • bell • belaklavion • Boatswain's whistle • bongos • budupaphone • cello • Chinese lute • chronographic sequencer • clarinet • double bass • double guitar • drum • esraj • euphonium • flute • guitar • gong • harmonica • harp • harpsichord • horn • jukebox • ka'athyra • kithara • Klingon concertina • Klingon drum • Klingon guitar • li'dswed • lute • lyre • mandolin • music box • oboe • piano • p'i p'a • Ressikan flute • sarangi • saxophone • sessica • snare drum • signal horn • tivara • triangle • Triexian guitar • trombone • trumpet • Tzutchian gong • Valtese horn • viola • violin • Vulcan gong • Vulcan lute • Vulcan marriage drum • xylophone

Piano article at Memory Alpha, the wiki for canon Star Trek.