When you're a former music teacher, you end up with a lot of odds and ends from undergrad & your own personal stash... And then the kids find them.
So they made a "band" - Elizabeth hit the drum sticks together and occasionally banged on the broken drum (which still sounds just fine, so I'm not worrying about replacing the head...).
John Paul sat on my guitar foot stand and... Clapped?
Cecilia was the "singer" and danced in circles humming tunelessly but also yelling at anyone else who DARED hum with her.
Mary Claire also danced, and that's the face she makes when she's dancing beautifully.
And Peter got tired of Cecilia trying to wrap a fabric scrap around him as a costume...
So yeah, we're basically the Von Trapps.