The Baritone Horn, or simply Baritone, is a member of the brass instrument family and it is used in marching bands, concert bands and symphony orchestras. Origins of the baritone horn can be traced to ancient Rome, where bronze and brass instruments called "tubas" often played at military and ceremonial functions. The modern Baritone Horn, also known as a tenor tuba, first appeared in Germany in the 1830\'s.
The Baritone Horn is often confused with another brass instrument called the Euphonium but they are actually not the same instrument! Although the two horns do share features and characteristics, including the upright playing stance, flared upward-pointing bell, a nine-foot-long main tube and partials from the Bb harmonic series, the Baritone has a smaller and more cylindrical bore while the Euphonium has a larger and more conical bore.
The Baritone Horn also has a tighter wrap and a far smaller bell, and is thus physically smaller and easier to hold and play.