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
Brass instrument are one of the major classical instrument families and are played across a range of musical ensembles. Orchestras include a varying number of brass instruments depending on music style and era, typically: Concert bands generally have a larger brass section than an orchestra, typically: British brass bands are made up entirely of brass, mostly conical bore instruments. Typical membership is: Quintets are common small brass ensembles; a quintet typically contains: Big bands and other jazz bands commonly contain cylindrical bore brass instruments. Mexican bandas have: Single brass instruments are also often used to accompany other instruments or ensembles such as