Shoot....that totally depends on her taste in music.
If all else fails you could have a few alternative CD's:
if she likes R&B: good, slow love songs (classic Boys 2 Men --I'll Make Love to You)
country: all those really sappy songs that start when the guy and girl were two and end when they're having kids (there are a LOT of those)
OR you could just do top-40 stuff, which might be best. You know, cuddle up on the couch and listen to "Because I Got High."
