She'll be attending the Kaisou High, so if he teaches there she can take some kind of music class as an elective. She would have had to take classes back home (maybe voice or piano), so she's at least passable. And Mr. Craig, what you do is great, chase after your dreams! She can get his autograph when he makes it big, right?

Also editing this because it just came to me, but she'd probably put some of his stuff on in the background while studying too (and won't be ashamed to tell him that). It helps her focus!