The instrument with black and white keys is the piano. The piano is a versatile and widely loved keyboard instrument, capable of producing a wide variety of musical styles and genres. It is played by pressing keys that activate hammers to strike strings, generating sound. The black keys represent sharps and flats, while the white keys are the natural notes. Pianos come in various forms, including grand pianos and upright pianos, catering to different preferences and spaces. Musicians use the piano for solo performances, accompaniment, and composition, making it a fundamental tool for both amateur and professional musicians.