Two APs; both in morning on same day

So on college board, they have the test dates posted for all of the AP exams being administered in 2015. On Monday May 11th, it says both AP Biology and AP Music Theory are being administered and I’m in both classes and I was really confused about how that would work. I’m going to speak with my counselor on Tuesday, but I was just wondering if someone could explain on here as well! Thanks!

You can take an AP exam on an alternate date in this circumstance without fee. See http://professionals.collegeboard.com/testing/ap/coordinate/late