A keyboard instrument is a musical device that produces sound by pressing keys. Common examples include the piano, organ, and synthesizer. Each key corresponds to a specific pitch, allowing musicians to create melodies and harmonies. These instruments can be acoustic, like the piano, or electronic, like synthesizers. Keyboard instruments are versatile and used in various music genres, from classical to pop. They can be played solo or as part of an ensemble. Many keyboard instruments also have additional features, such as pedals or sound effects, enhancing their musical capabilities and allowing for creative expression.