@VickyJ101
Everyone here posting about majoring and minoring in whatever you want as long as your GPA is stellar is completely right. I'm just going to tailor advice to the music minor since that's something I did in undergrad. Also realize you are a freshman so you will most likely change your mind as you go through school. Whatever you choose
make sure you meet with good advisors who can help you plan your schedule along with your pre-reqs. This will usually be a combination of advisors within your majors/minors.
(skip the rest if you're not interested but here's the more music-related stuff)
If your interest is just in performing, then there shouldn't be any reason you can't join a choral group without doing the minor, unless for some reason you can only be in the group if you are a music major or minor (depends on school but I wouldn't know otherwise).
That said, some pros and cons of a music minor from my experience:
Pros
-Arts in general are looked upon well by medical schools, so if anything music would be a bonus to show your enjoyment in these things
-You get several gen ed's out of the way, especially related to the humanities and global studies
-You can forever say, "Hey, I completed a minor! Awesome!"
Cons
-Performing with classes is time-consuming; it's do-able but it's something you have to plan ahead because you can easily overload yourself with pre-reqs plus performing
-It can be a lot of credits depending on the school
-Music theory: very rewarding to learn, but it can be very time-consuming. Some minors are shifting away from the theory though and focusing more on the cultural awareness aspects; check with your school's program to see if that applies
Tl;dr...time-consuming, but rewarding when you finish it. I would do it over again with some schedule re-adjustments to not overload myself.
Hope that helps; best of luck to you!