I have Vandy music major son who wanted to double major. He dropped that ambition fast when he saw the schedule for music majors.
There is no way possible during your fresh and soph year at Vanderbilt to double major. You may very well take 18 class credits per semester in addition to practice time, tutoring, quintet ensemble and performance schedule just to meet your music major requirements. My son had room on his non-music schedule for German. That was it.
He knows several kids who are minoring in music at Vanderbilt, but none who are double majors. It just isn’t feasible, unless you’re willing to spend five or six years in college.