Congratulations on your acceptance
Which program did you audition for, BM or BFA?
It would not be possible to graduate in 4 years if one was to try to double major in the BM and BFA programs. Whether or not the school would allow you to do a double major and spend extra time in the programs I don't know, though I doubt it. But, my motto has always been, "When in doubt, ask the department chairs."
Yes, FSU does have a waiting list.