Euphonium Euphonium The euphonium is a large, conical-bore, baritone-voiced brass instrument that derives its name from the Ancient Greek word "euphōnos", meaning "well-sounding" or "sweet-voiced" ( "eu" means "well" or "good" and "phōnē" means "sound", hence "of good sound"). The euphonium is a valved instrument. Nearly all current models have piston valves, though models with rotary valves do exist. The euphonium may be played in bass clef as a non-transposing instrument or in treble clef as a transposing instrument. In British brass bands, it is typically treated as a treble-clef instrument, while in American band music, parts may be written in
Tenor cornett cornetts, true alto or tenor cornetts. However, a number of instruments with a larger bore have survived and these instruments seem to have had a sound somewhat reminiscent of the serpent. The timbre of the small bore tenor cornetti is more "focused" and incisive than that of their large bore counterparts. Some modern cornett makers, like Christopher Monk, for instance, have made both varieties of tenor cornett available to customers. The tenor cornett was used almost exclusively as a consort instrument. No solo music survives for this instrument. In the works of Schütz, Schein, Scheidt, Praetorius, Gabrieli, Viadana and other