-Of course! I thought I'd only repay the favor
-I get that, it could be grating. I love tenacious d because they rock so hard, not just because they tell jokes. That's the reason why I don't listen to Bo Burnham that much. I would definitely check out The Darkness if you get the chance, they're not really mock rock, although their main singer is a little silly.
-Take Five is a jazz piece by Dave Brubeck, haha. It's famous for being one of the only popular jazz pieces in 5/4 time, so it has a hypnotizing feel to it.
-I did, their music was quite interesting. The first album caught me off guard, but the one you suggested I liked quite a bit