The B♭ clarinet is a woodwind instrument known for its rich, warm tone. It is commonly used in orchestras, bands, and chamber music. The instrument is made of wood or plastic and has a single-reed mouthpiece, which produces sound when air is blown through it. The B♭ clarinet is tuned to the key of B♭, meaning it sounds a whole step lower than written. This clarinet has a range of about three octaves and is popular in various music genres, including classical, jazz, and folk. Notable composers like Wolfgang Amadeus Mozart and Igor Stravinsky have written significant works featuring the B♭ clarinet, showcasing its versatility and expressive capabilities.