Basset horn

The basset horn (sometimes written basset-horn) is a musical instrument, a member of the clarinet family.

Like the clarinet, the instrument is a wind instrument with a single reed and a cylindrical bore. However, the basset horn is larger and has a bend near the mouthpiece rather than an entirely straight body (older instruments are typically curved or bent in the middle), and while the clarinet is typically a transposing instrument in B♭ or A (meaning a written C sounds as a B♭ or A), the basset horn is typically in F (less often in G). Finally, the basset horn has additional keys for an extended range down to written C, which sounds F at the bottom of the bass staff. Its timbre is similar to the clarinet's, but darker. Basset horns in A, G, E, E♭, and D were also made; the first of these is closely related to the basset clarinet.

The basset horn is not related to the horn, or other member of the brasswind family (Sachs-Hornbostel classification 423.121.2 or 423.23); it does, however, bear a distant relationship to the hornpipe and cor anglais. Its name probably derives from the resemblance of early, curved versions to a horn.

Some of the earliest basset horns, which are believed to date from the 1760s, bear an inscription "ANT et MICH MAYRHOFER INVEN. & ELABOR. PASSAVII", which has been interpreted to mean they were made by Anton and Michael Mayrhofer of Passau.

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