Current music is very diverse. Some is appropriate for ballroom dancing and some is not. A good share of country and latin modern music is very danceable. Almost all music by, Latin artist like Ricky Martin and Enrique Iglesias is danceable and a lot of the music at ballroom dances is modern, particularily from artist like Ricky Martin and Enrigue Iglesias. Even madonna has numerous good dance songs.

Other than rap, which to many is not music, a lot of modern music is danceable. It just that at many dances, nobody knows real dances and does not do ballroom dances at those dances. When there is music that you could ballroom dance.

I grew up with rock and roll, people did not do really dancing to that much. But most of it was swing, rumba and chacha rythyms. 50 years later I am finally really dancing to the music a grew up with.