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– and in many of these cases the euphonium is substituted for the called-for instrument, either because the instrument is obsolete (French C tuba),
Brass instrument of most scholars (see organology) is that the term "brass instrument" should be defined by the way the sound is made, as above, and not by whether the instrument is actually made of brass. Thus one finds brass instruments made of wood, like the alphorn, the cornett, the serpent and the didgeridoo, while some woodwind instruments are made of brass, like the saxophone. Modern brass instruments generally come in one of two families: There are two other families that have, in general, become functionally obsolete for practical purposes. Instruments of both types, however, are sometimes used for period-instrument performances of