I don't know about the wisdom thing, but I had a lot of years of tap, jazz and ballet. However, I learned a long time ago working in regional theatre companies that one never admits they can play a musical instrument. Never.
I think the costumes should have a sort of village people assorted quality to them. Instead of a plumber, a cop, and indian and a cowboy we'll have our bunny slippered beauty, a duck hunter, a winged angel, a big Kitty with sharp claws, a hospital gowned patient with an icepack strapped to her head, a copy of the Bob Macke butterfly Barbie dress, a Sherlock Holmes and a rotisserie chef.