Yes, I do. Musicology is like any music degree in that one must declare a principal (and, usually, a secondary) instrument. I am a Voice principal with piano, harp, uillean and Highland pipes, tin whistle, recorder, trumpet, oboe, English Horn and a smattering of others as secondaries (yeah, it's a weird list). Of course, musicology is basically analysis of musical structures, so we always end up teaching Theory & Composition and the Music Appreciation courses (not that I mind).
Unfortunately, academic composition is very trendy, and currently, everyone is striving to become the next "ground-breaking" John Cage or George Crumb. I think the ground of orchestral composition has mostly shifted to the movies (as inspired by Philip Glass as they may be), although many movies don't live up to their soundtracks: