The B-flat clarinet is the most common type of clarinet. It is used in a variety of genres of music, including classical music, jazz, and pop.
The A clarinet is a higher-pitched clarinet that is used in some classical music and jazz ensembles.
The basset clarinet is a lower-pitched clarinet that is used in some classical music and jazz ensembles.
The E-flat clarinet is a small clarinet that is used in some jazz ensembles.