Yes - to avoid gen eds in undergrad. (and she’s still about 20% in favor of double-majoring. This has declined from 90% several months ago… but she wants to continue to be prepared on all fronts until she feels more certain of her decision…)
Some schools won’t accept the credits, some will. The CLEPs shouldn’t be too time consuming for her due to her previous exposure to those particular subjects & since she’s starting them over the summer. She’s an excellent time-manager, so we’ll see what she can do. If/when it’s too much, she can change the trajectory as needed.
Yes, free-standing conservatories vs conservatories/music schools within a university. It’s clear in my head, haha - and using the two terms for us helps us clarify which type-of-music-school we’re talking to. Conservatories generally aren’t going to care how many APs she has… music-schools-within-a-university-system might. 
@BassTheatreMom - She’s homeschooled, so her principal (aka: me) is a-ok with her not taking the Theory exam. 
She doesn’t see the point since she fully plans to take MT1 wherever she winds up. Her #1 school won’t accept the score anyway.