+1 for Ween, good to to know I'm in good company. More than one non-Ween listening belayer has been slightly startled by my apparent request for them to piss up a rope as I contemplate a crux move.
Other favored tunes include whistling Alpha Beta Gaga (Air) or the sung bass part of "Don't eat the yellow snow" (Zappa).
When things get more hairy I'm accused of making Yoda-like noises.
I go with something from Air Supply's Greatest Hits
Or the doors:
"Tell all the people that you see,
you'll be free,
follow me down"
Or "Davey, Davey Crockett, king of the wild frontier"
Or
"Goodnight sweet love, well, it's time to go.
Goodnight sweet love, well, it's time to go.
I hate to leave you but I really must say,
Goodnight sweet love, goodnight"
Or "Ba-ba-ba, ba-bar-baraaaan..."
Or
"In the days of my youth,
I was told what it means to be a man.
Now I've reached that age,
I try to do those things the best I can.
Good times, Bad times, you know I've had my share..."
Or
"Did you ever know that you're my hero
You're everything I would like to be
If I could fly higher than an eagle
You are the wind beneath my wings"
Let us know!