A well-known musical instrument somewhat resembling the harpsichord, and consisting of a series of wires of graduated length, thickness, and tension, struck by hammers moved by keys
a stringed instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds
"Soft-loud " A keyboard instrument, the full name for the piano, on which sound is produced by hammers striking strings when keys are pressed It has 88 keys