Here is the link for the Ionian Tusk of the Daywalker geocache itself.

Okay, that's just disturbing. You Canadians are weird.

How about this, though. What other places in the world can we find interesting musical cyphers, or other stuff where the notes come from something patterned or numerical (rather than straight from a musician's imagination)?

I can't think of many. There's a Bela Fleck piece called "UFO Tofu" where he tries to do some musical palindrones (the title of the piece is a palindrone). Anyone else?