A keyboard instrument is a musical instrument played using a musical keyboard. The most common of these is the piano. Some types of keyboard instruments include celestas, which are struct idiophones operated by a keyboard, carillons, which are highly different instruments made by man-kind that are usually housed in bell towers or belfries of churches or other municipal buildings, and other non-acoustic instruments, such as various electronic organs, synthesizers, and keyboards designed to imitate the sound of other musical sounds. Today, the term “keyboard” is mostly commonly used to refer to keyboard-style synthesizers. Under the fingers of a sensitive performer, the keyboard may also be used to control dynamics, phrasing, shading, articulation, and other elements of expression, depending on the design and inherent capabilities of the instrument.
The piano is a musical instrument played by means of a keyboard. Widely used in classical and jazz music for solo performances, ensemble use, chamber music and accompaniment, the piano is also popular as a tool for composing and rehearsal. Although not portable and often expensive, the piano’s versatility and ubiquity have made it one of the world’s most familiar musical instruments.