@PLO1967 no, schools generally do not “recruit” musicians in the same way that coaches recruit for athletes. Someone at ND may encourage her to apply- seems likely.
She can apply with a music supplement that includes recording/video (preferably solo), a music resuime, and 1-2 letters of recommendation related to music.
This can help with admissions, for sure, if the talent justifies the supplement (sounds like it does). It seems she has a good chance via academics as well.
BA programs usually don’t have auditions for admission. Her contacts with ND music already may also be helpful. BA programs will generally have auditions in the fall of freshman year for extracurricular music.
Is she considering any other schools?