Training mode music/stage selection?

Every time i go to training mode i get stuck with this certain stage and its music, its starting to give me the shits, lol, so i was wondering if anyone knew how to select a different stage or music during training mode??

 

Hmm.. I don't think u can change the whole level.. but I believe that u can choose between three modes 1.) unbreakable caged arena 2.) caged but breakable
and finally open.

I forgot what option is that, but u can try the fifth one or the sixth option. and sorry I can't help u about changing the music, I really have no idea on how to do that, but if u managed to change it post it here anyways.