The piano is the instrument that features black and white keys. It is a popular musical instrument that belongs to the percussion family because its sound is produced by hammers striking strings. The keyboard typically comprises 88 keys: 52 white keys and 36 black keys, organized in a repeating pattern of octaves. The arrangement allows for a wide range of musical expression, from classical to contemporary genres. The piano is capable of playing melody and harmony simultaneously, making it a versatile instrument for solo and ensemble performances. Its rich sound and dynamic range have made it a favorite for musicians worldwide.