 Most often tubas and euphoniums will be combined into a studio taught by one professor, and at small schools they may be grouped with trombones and/or French horns as well, taught by one low brass professor.Universities will usually require professors in this situation to have a high level of proficiency on all the instruments they teach, and some of the best college euphonium studios are taught by non-euphonium players.German Ferdinand Sommer, if one discounts the claims of Moritz and Sax each of whose horns also approached a euphonium in nature, in addition to being credited with inventing the euphonium as the Sommerhorn in 1843, as a soloist on the horn, qualifies as the first euphonium player to significantly advance and alter the understanding of the instrument.