Like talking about weed, there is no way not to sound stupid talking about your rock opera. Take this quote from Pete Townshend about the Who's new mini(!) rock opera, rumored to be called "The Glass Household." He says it's about:
"three kids who form a band and they discover a stash of papers by some has-been rock star, talking about a massive internet experiment."
Obviously this is awesome and quite Advanced, and I'm hoping the "massive internet experiment" turns out to be iTunes, Wikipedia, or eBay. At any rate, you'll be able to hear it on the BBC's "Electric Proms" in October.