I don't have experiance working with kids... but I have done magic/manipulation routines to music! Most teenagers (about 12+) like the music thing... but I'd have to think that if you're talking about younger kids, that they'd probably like to have stories told to them instead.
This is just my opinion... I

LOVE

doing magic to music! Being a musician, and a card magician, I write and record music on my computer to "custom fit" my routines. If you're interested, send me an E-mail... I can send you a couple of the songs I've written! They're mostly fast-paced and repetitive, but they have a catchy beat, and some even have kind of a "spooky feeling to them!
Anyway... I hope that what I've said helped out a little, but as I said... this is just my opinion.
-impromptucards