I have a couple of comments. EA at Frost is actually EA for U Miami. The audition is still required but it admits the student to the U earlier and opens up the academic scholarships earlier. I can’t recall but I think maybe it was @vistajay who’s kid was the only one on the board that was admitted EA there. He still had to audition during the regular time with everyone else. But I think his kid got a full ride there. It’s really an EA for academics only so for kids that have off the charts SAT/ACT scores and GPA it’s a good thing to do. Otherwise don’t bother.
The other thing to keep in mind is despite what they may tell you, there is little to no money in Popular music, the money is in jazz. That is absolutely true for Thornton as well and states it right on their admissions website. And with Thornton, truly the money is ALL academic. I know kids going there on good scholarship from academics (they are off the charts) and a pittance for music scholarship, like $2500 in jazz. My D would never have gotten in there academically so we didn’t waste our time.
Finally I would encourage your D to check out New School. They can be generous with money and your D would be heavily recruited as a female instrumentalist. She would have NYC at her feet and have opportunity in both jazz and contemporary music as it’s right in the title of the school. Worth a look, audition and application IMO. And they will bump initial offers with appeals as well.