You’re a little young to be focused on one career goal, especially considering your variety of interests. Some ideas:

Computer science/engineering

Graphic designer

Music producer (the technical side)

Appalachian State University has majors in studio art (with a concentration in photograph), graphic design, computer science, and music industry studies. Even if you don’t quadruple-major (and trust me, you won’t), the point is that there are classes in all your areas of interest there. http://www.appstate.edu/

I believe that UNC-Asheville also has a very artsy feel to it. It might also be worth checking out.

There are probably many colleges out there that would fit your needs–these are just a few. At http://www.princetonreview.com (not to mention several other sites), you can take a short quiz that will help pinpoint several possible colleges. Good luck.