Topic summary
Shawms

Extracted from the Wikipedia article Shawm.
The body of the shawm is usually turned from a single piece of wood, and terminates in a flared bell somewhat like that of a trumpet. Beginning in the 16th century, shawms were made in several sizes, from sopranino to great bass, and four- and five-part music could be played by a consort consisting entirely of shawms. All later shawms (excepting the smallest) have at least one key allowing a downward extension of the compass; the keywork is typically covered by a perforated wooden cover called the fontanelle. The bassoon-like double reed, made from the same Arundo donax cane used for oboes and bassoons, is inserted directly into a socket at the top of the instrument, or in the larger types, on the end of a metal tube called the bocal. The pirouette, a small wooden attachment with a cavity in the center resembling a thimble, surrounds the lower part of the reed—this provides support for the lips and embouchure.