I have a new student who has an acoustic / electric violin, so I need to learn about it quickly. I've already read some discussions on the subject elsewhere on this site and on the Internet, and what I have learned is mainly techie stuff. Now I'd like to learn about the esthetic considerations of the sounds you can produce on an electric violin. Obviously, it can be amped to play louder than an acoustic, but there must be other, more musical considerations. What kind of music would you use an electric violin for? What special effects would be useful for what kind of music? I don't need to know so much *what* can be done but *why*, musically, you would do these things.