Well, I tried playing with Generations but there are way too many bugs. There are no hotspots ever, and also a broken adventure in China which messes up the whole game. These are from EA of course, just a bit of warning.
But Naga, when you do update it, can you check the clubs and bars? Some don't have stereos to dance for the opportunities you get. At least there are 2, one with the pool. Other one I can't remember.
I noticed with 3.1 that the Pisces and The Disco Llama are missing the stereos so you can't dance at them.
When I went to build/buy mode on the lot and used buydebug to get the proper stereos ... they don't play the club music, they playing classical.
edit:
using Google I found this solution...
When building a club, you can change the music genre and a bunch of other things by holding shift+crtl and clicking the speaker.
(only in build/buy mode)