Oops; looks like it's being held in Tempe, not Tucson, at Arizona State U campus (not U of A). My bad.
Arnold (Arnie) Williams
Sterling Virtuoso Euphonium with Gold Brass bell (Capitol Pops Band, Capitol Pops Tuba Euphonium Quartet)
Yamaha YBH-831S Neo Baritone Horn (Joyous Brass, First Baritone)
Yamaha YBH-301M Marching Baritone (Ophir Prison Marching Kazoo Band and Temperance Society LMTD)
Yamaha YEP-830 Xeno Bass Trombone (Sacramento Concert Band)
Euphonium: DW Heritage 4AL (main); K&G 3D (Ophir Prison Band)
Bass Trombone: Ferguson M Series Jeff Reynolds