Found this file on my PC. It isn't perfect as an improvisation, but you are allowed a few mistakes when you are just playing away. I hope you enjoy listening to it.
It's totally lighthearted, kind of jazzy-blues-like. The organ sometimes sounds like a theater or Dutch street organ. That's what happens when you are having sooo much fun! I treated Metz sacrilegiously! Lol. Basis of inspiration: the Pink Panther theme!