Euphonium repertoire euphonium was embraced from its earliest days by composers and arrangers in band settings, orchestral composers have generally not taken advantage of its capabilities. Nevertheless, there are several orchestral works, a few of which are in the standard repertoire, in which composers have called for a tenor tuba, a German "Tenorhorn"¹, a Wagner tuba, or a French tuba in C. In all of these cases, the composer's desired effect was that of "tenor-voiced, valved brass" instrument – and in many of these cases the euphonium is substituted for the called-for instrument, either because the instrument is obsolete (French C tuba),
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