The clarinet is a single-reed woodwind with a cylindrical bore that gives it a wide range and a uniquely pure tone. The player closes and opens holes with the fingers and with keys, while the reed vibrates against the mouthpiece.

Its agility and dynamic flexibility make it a favorite in orchestras, wind bands, jazz groups, and chamber ensembles. The chalumeau register is dark and reedy; the clarion register sings brightly; the highest notes can pierce or float. Composers from Mozart onward have written extensively for the instrument.

Clarinetists spend considerable time selecting and adjusting reeds because the reed’s response shapes every phrase. Different sizes of clarinet—B-flat, A, E-flat, bass—extend the family’s range and color. The instrument’s versatility has kept it central to both classical and popular traditions.

• Single-reed woodwind with cylindrical bore
• Wide range and pure tone
• Used in orchestras, bands, and jazz
• Requires careful reed selection