I've recently uploaded to Youtube some audio from the York University Brass Ensemble concert which happened this past February (just 2 weeks back from the strike!), in which I play the tuba and euphonium:

http://www.youtube.com/user/baldabrass

I think "Stardust" came out the best:

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If you're in the area, consider coming to our next (and possibly final) concert on Monday May 11, 12:30 pm, Tribute Communities Recital Hall, Accolade East Building, York University. Admission is free!