Bass clarinet

Construction and range

In basic form the instrument resembles a larger clarinet with a longer body and a curved metal neck and bell on many modern models. Typical components include a mouthpiece and reed, a neck or barrel, the main wooden or composite body with keywork, and a flared bell. Many contemporary instruments have key mechanisms that extend the low range; common models reach well below the written staff and often include down to low C or B♭ depending on the maker.

History and development

Early experiments with bass-register clarinets date to the late 18th century in Paris and other centers, when craftsmen adapted the basic clarinet design to produce lower pitches. Throughout the 19th century further mechanical refinements and standardization produced the modern instrument used today. The bass clarinet grew in orchestral and band roles during the late 19th and 20th centuries as composers explored a wider palette of timbres.

Uses and repertoire

Because of its sonority and extended range the bass clarinet appears in many kinds of ensembles:

• Orchestras — providing low clarinet color and occasional solos.
• Concert bands and wind ensembles — often a standard part of the reed section.
• Chamber music and contemporary ensembles — used for its versatile tonal colors.
• Jazz and popular music — some players adopt it for its unique sound.

Variations and notable facts

Although the B♭ bass clarinet is most common, instruments in other pitches (A, C, or E♭) have been made but are relatively rare. Larger relatives such as the contrabass clarinet extend the family downward. For general information about the clarinet family see the clarinet overview, and for broader context on single-reed woodwinds consult a general woodwind guide. For an explanation of transposition and interval relationships that affect the sounding pitch of transposing instruments see octave and transposition.