Hi Layla,
Tough problem. Don't have too much to say but thought I'd throw some ideas there.
First, do words annoy you incredibly or words you can understand? That is, would songs in words you don't understand be ok? If so you can try to get recommendations from people in exotic countries to good popular music in their language. The music might still be a problem, but might not.
Second, what about separating your taste and party music? There are ways of downloading a lot of music, and not that I'm advocating downloading illegal music, but if you do that you can try out a lot of music you wouldn't normally buy. For instance, putting Britney Spears' new cd at your next party will surprise everyone there. (You would need to connect your computer to the stereo but that's easy). Of course you can try pop music you actually might not mind for parties, even if it's not what you really like. Or, jazz music you don't necessarily like.
I must say that classical music is awful party music if you actually have people over who really like it, as all of sudden they stop listening to what people say and listen only to the music. (Luckily most people don't like classical music, so it's usually ok.)
Third. You might like Django Reinhardt for parties. It's guitar music, and Jazz, but though I don't like Jazz either usually (don't know it very well), it's quite nice. If you saw Woody Allen's Sweet and Lowdown, it was featured there.
Fourth, and this is not your question, but as you say you have a crush on Schubert and prefer chamber music, I wanted to recommend, just in case you don't know it, a disc by the Weller quartet:

(Also, agree completely about the Budapest Quartet. You might also like to try Bosch)
Ok, not exactly what you were looking for, but some ideas. I suspect most of what people can recommend, as far as party music, is quite repetetive, so you're in for a bumpy ride here.
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