I once heard a nice vid on youtube, with a guy playing the prince of denmark's march, with variations on the main theme. (like this: Original, Variation 1, Variation 2, Original agian)
not sure about who played it, how many variations there were, and how often they were played, but I can't find the vid anywhere anymore.

does anyone have a link to the vid, or a simmilar vid?

I've twice seen Ed Tarr in recital with a set of variations on the Clarke march. Same Piece perhaps? If you're looking for it maybe you can track it down by way of him. Sorry, don't know the video you mentioned

DrZ

Dr.Z is referring to Variations on a theme from J. Clarke op. 132 by Stanley Weiner.

It is a brilliant chop buster written for Ed Tarr. In Germany, they can be bought here:
Spaeth / Schmid Blechbläsernoten Nagold - Online Shop