iTunes: Export demo of playlist songs

[sircharlo]

Hey guys.

I'm doing a gig for a friend's wedding, pro bono

I was wondering if any of you know of an app to export a "preview" of an iTunes playlist... Preview as in, automatically create one- or two-second clips of each of the playlist's songs and mash them up together in an audio file.

I would then send the file to my friend, and she would know what music I'd be playing.

It sounds far-fetched, right? Anyway, I was hoping something like this already existed out there somewhere..

Thanks!