"Clarinet In Bb / B / De BÜhner Et Keller à Strasbourg"Clarinet in A by BÜHNER and KELLER in Strasbourg. The clarinet is a woodwind musical instrument characterized by its simple reed and its almost cylindrical bore. It was created around 1690 by Johann Christoph Denner (1655-1707) in Nuremberg on the basis of an older simple reed instrument: the "blowtorch". The clarinet is used in classical and traditional music as well as in jazz. Among the famous compositions for this instrument, we can cite Mozart's Clarinet Concerto. In 1810, Heinrich Bärmann (1784-1847) proposed the inversion of the beak, thus positioning the reed on the musician's lower lip. The clarinet was brought to its current level of perfection by French instrument makers, Muller in Lyon, Lefebre in Paris, Baumann, Winnen, Guerre, Raingo in Mons, Amlingue, Simiot, Louis-Auguste Buffet in collaboration with clarinetist Hyacinthe Klosé. Both adopted the principle of mobile rings that the German Theobald Boehm had imagined for the flute: the Boehm system. Today, the Boehm system is used by clarinetists around the world, with the exceptions of the Germans and Austrians, who use most of the competing system: the Oehler system. Another thirteen-key system developed by Eugène Albert in the 19th century, the Albert system, is still used today. The Boehm clarinet therefore has 17 keys, sometimes 18. There are two variants of the Oehler system comprising 19 and 27 keys respectively.