QMultiMap appears to be created in sipphonon modules within phonon. I don't have the wherewithall to register these classes' metatypes, and I'm not even sure doing so is barking up the right tree.

I'm going to chalk this up to the newness of phonon in Qt4, and the additional variable of PyQt on top of it. The embedded class in phonon and its obfuscation from python seems to be the problem.

For now I am ending my pursuit.

I will post if there's an update or solution, and I hope you will do the same.