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
Tuba a brass band or military band, they are known as bass players. Prussian Patent No. 19 was granted to Wilhelm Friedrich Wieprecht and Johann Gottfried Moritz (1777–1840) on September 12, 1835 for a "bass tuba" in F1. The original Wieprecht and Moritz instrument used five valves of the Berlinerpumpen type that were the forerunners of the modern piston valve. The first tenor tuba was invented in 1838 by Carl Wilhelm Moritz (1810–1855), son of Johann Gottfried Moritz. The addition of valves made it possible to play low in the harmonic series of the instrument and still have a complete selection