My one kid never sat in on a class until accepted student day. BUT that same kid absolutely wanted to play innthe orchestra in college…not a music major or minor. She contacted the orchestra director, the private instructor on her instrument, and the head of the music department. All met with her when we went to visit…the private teacher for the longest. Kid did this at every college we visited.
None of these folks were available to meet on weekends…but weekdays worked fine…and they were happy to have the conversation.
So…have your kid send an email about her enthusiasm for continuing music as a non-major. She can include that she is visiting in blah blah date, and ask if there is a time the could meet!