Tenor horn horn is a valved brass instrument (in E) which has a predominantly conical bore like the baritone horn and flugelhorn. It uses a deep funnel- or cup-shaped mouthpiece. The tenor horn's conical bore and deep mouthpiece produce a mellow, rounded tone which is often used as a middle voice, supporting the melodies of the trumpets, cornets or flugelhorns, and filling the gap above the lower tenor and bass instruments (the trombone, baritone horn, euphonium and tuba). Its valves are typically, though not exclusively, piston valves. The tenor horn has been made and is made in various shapes: the most common
Brass instrument valve Brass instrument valve Brass instrument valves are valves used to change the length of tubing of a brass instrument allowing the player to reach the notes of various harmonic series. Each valve pressed diverts the air stream through additional tubing, individually or in conjunction with other valves. This lengthens the vibrating air column thus lowering the fundamental tone and associated harmonic series produced by the instrument. Valves in brass instruments require regular maintenance and lubrication to ensure fast and reliable movement. The first piston-valved musical instruments were developed just after the start of the 19th century. The Stölzel valve (invented