I’m a working music professional with a DMA in music. DO NOT WASTE YOUR TIME WITH THE MUSIC THEORY AP!! No music school worth their salt will give that test any weight at all. When you get to music school, EVERYONE (meaning every major: composition, performance, theory, etc) has to go through ear training exams, theory placement tests, etc. Every school thinks their placement tests are better than the AP. IMO you are much better off taking all 4 years of HS in one language. It’s a stupid meaningless test. Save your $$. IMHO.