Euphonium are the tuba-euphonium quartet or larger tuba-euphonium ensemble; the brass quintet, where it can supply the tenor voice, though the trombone is much more common in this role; and other mixed brass ensemble. Such ensembles are almost non-existent: they are more likely to be semi-professional or amateur in nature. Most of the United States Armed Forces service bands include a tuba-euphonium quartet made up of players from the band that occasionally performs in its own right. The euphonium is not traditionally an orchestral instrument and has not been common in symphony orchestras. However, there are a few works from the
Roman tuba Gaul," The Pennsylvania State University. 2.John Ziolkowski, The Roman Bucina: A Distinct Musical Instrument? Roman tuba The "tuba" of ancient Rome is a military signal trumpet, quite different from the modern tuba. The "tuba" (from Latin "tubus", "tube") was produced around 500 BC. Its shape was straight, in contrast to the military "buccina" or "cornu", which was more like the modern sousaphone in curving around the body. Its origin is thought to be Etruscan, and it is similar to the Greek salpinx. About four feet in length, it was made usually of bronze, and was played with a detachable mouthpiece.