serpent

The serpent is a low-pitched early wind instrument in the lip-reed family, developed in the Renaissance era. It has a trombone-like mouthpiece, with six tone holes arranged in two groups of three fingered by each hand. It is named for its long, conical bore bent into a snakelike shape, and unlike most brass instruments is made from wood with an outer covering of leather or parchment. A distant ancestor of the tuba, the serpent is related to the cornett and was used for bass parts from the 17th to the early 19th centuries.

In the early 19th century, keys were added to improve intonation, and several upright variants were developed and used, until they were superseded first by the ophicleide and ultimately by the valved tuba. After almost entirely disappearing from orchestras, the serpent experienced a renewed interest in historically informed performance practice in the mid-20th century. Several contemporary works have been commissioned and composed, and serpents are again made by a small number of contemporary manufacturers. The sound or timbre of a serpent is somewhere between a bassoon and a euphonium, and it is typically played in a seated position, with the instrument resting upright between the player's knees.