Actually not much of a rotation, the UND band only went once when I was there, but I can't remember if that was '99 or '00. It wasn't a good experience as the NDSU fans booed throughout the entire performance and then the UND band was stuck at the very top corner of an endzone. IIRC Lots of the UND band members didn't really get much for food either as each section for NDSU was responsible for feeding instead of just have a big band mixer.
NDSU did come the following year. The year after that the UND band voted no to going back to Fargo. Instead we traveled to Omaha (I believe they have since gone again). The band has also gone to Mankato and this year is going to Duluth. The UND band did go to Fargo on one other occasion and that was when Bush visited. I still think it was odd that we were invited, but whatever.
Help me out here, but isn't every music major at NDSU required to be in the marching band?