Etudes Appropriate for college auditions.
Indeed, I might something a bit more along the lines of a Bordogni etude, or even one of the Blazhevich studies. Both the Bordogni and Blazhevitch will show your ability to show a warm and consistent tone throughout the range of the instrument (as suetuba mentioned), they will also show your ability to develop a very musical phrase through use of dynamics, articulations, etc... Both the Bordogni and Blazhevitch etudes are great for showcasing your musicality, but some of the Blazhevitch etudes are a bit more interesting, and are open to a bit more creative freedom. just my humble opinion.
Gregory E. Lopes
Euphonium player
US Navy Band Great Lakes
US Navy Music Program, 2009-Present
Besson Prestige 2052