Floor surfaces of review classes I've taken part in include wood, carpet, and outside on a handy patio area. Fortunately this last one was in summer!
The lack of music didn't bother me at the time. I don't know if it helped or hindered my learning.
The only review class I've seen with music provided was in a very small venue where the review class took place in the same room as the intermediate class, and shared the music with us. That worked surprisingly well.