One pitfall is scheduling. Unlike IB math, IB music doesnít need a separate course if the material gets covered in unique ways. The kids are tested by giving them a score to a piece they have learned and they have to talk about compositional theory, texture, form, historical reference, etc. The choir teacher at our school was scheduled to cover IB music once a week during top band, top choir and top orchestra. She might take 15 minutes or 45, depending on what she had to cover and then the kids would come back to class.
The kids have to have a SL level 6 elective, and they can do well if itís band. Part of my job was to provide recordings of ensembles the kids had performed in (UIL) that fit within the time requirement they needed. I think the overall score goal was a 7 (ensemble performance, plus the test). Our counselor told us that our kids were averaging a 4 from the ensemble recordings because we were playing good lit (standard grade 5 lit). Thatís a huge selling point for getting kids to stay in band if they want to do IB. Credit without changing (or taking another book course) what they currently do.
We didnít do it well the first 8 years and then figured it out. Saved our programs! Email me if you have more questions (firstname.lastname@example.org)