Louis-Auguste Buffet and Hyacinthe Klosé were the first great innovators in the history of the clarinet in the nineteenth century, adapting Boehm’s mobile rings and rethinking the sound concept with the groundwork of the first polycylindrical bore..

Robert Carrée, iconic figure of Buffet Crampon in the 20th century, in collaboration with Jacques Lancelot, perfected the fundamental acoustic techniques and refined the polycylindrical design concept of our bore families by creating the two legendary clarinets: the R13 and RC, released respectively in 1954 and 1975.

At the end of the 20th century, Buffet Crampon revolutionized the structure of base materials with Green-LinE.

Today, we start a revolution for the 21st century: a longer B-flat clarinet that pushes all boundaries. Eric Baret and our four testers, musicians Michel Arrignon, Nicolas Baldeyrou, Martin Fröst, and Paul Meyer, are proud to present the BCXXI.


  • The lower joint of a B-flat clarinet extended by several centimetres in which a strategically placed resonance vent makes it possible to produce low E-flat with a full and vibrant sound. Overall, the entire chalumeau register is greatly improved thanks to its limited flare in favour of a longer cylinder.
  • A shorter bell that no longer determines the accuracy of the fundamental notes E/B and F/C but serves as a resonator for the entire clarinet.
  • A surprisingly stable and easy high register, thanks in part to the elongated bottom joint.
  • A third fingering of Bb middle register that creates vibrations in the entire length of the instrument to produce a full and resonant sound. This new mechanism will also allow the musician to create new sequences without changing  registers, or to revise certain fingerings used in the pieces of the repertoire.
  • The balance of the left hand, especially G♯ /C♯, D/A, have been greatly improved.
  • A slightly raised tone hole on D allowing a more ergonomic positioning of the left-hand fingers by keeping them on the same horizontal plane.
  • Enjoy rediscovering the repertoire that includes a low Eb and composed in A to Bb.
  • Finally, imagine a weight equivalent to a traditional clarinet thanks to its shorter bell and carbon fibre rings.

BCXXI : Two initials and a number, signifying the beginning of a new century and representing the architecture of a new acoustic paradigm.


A digital passport for your clarinet

Enjoy a number of advantages

  • Digital passport
  • Your clarinet’s history
  • Priority access to events and limited editions
  • Maintenance notifications
  • Fast access to Buffet Crampon maintenance & repair service (Except Germany)


get your certificate of authenticity

Technical specifications

  • Key : B-flat, A
  • Pitch : 440/442 Hz
  • Body : Natural Grenadilla wood (Dalbergia Melanoxylon), Buffet Crampon cylindrical bore, Inserts in Green LinE tones holes slot on the upper joint, Metal-capped tenons, Delivered with 2 barrels: 65 and 64mm
  • Keywork : 19 keys et 6 rings, Adjustable thumbrest, Eb lever, Low Eb/Bb key, Silver plated and Gold plated, Highly reliable keywork, Metal pins with O’ring, Blue steel springs
  • Pads : Combination of GT pads (100% waterproofand breathable) and natural cork pads
  • Case : Special BCXXI : compact, black
  • Accessories : Rose gold Harmonie ligature with silverplated screws, Silver plated Buffet Crampon mouthpiece cap, Buffet Crampon pull-through
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