Helping people with computers... one answer at a time.
Depending on where you're downloading your music files from, you may or may not be downloading a virus instead.
Is it possible to get a virus from a music download?
As with all things, it depends.
If by "music download" you mean that you are downloading music files, MP3's, and the equivalent from trustworthy sources, then the news is good.
But if you mean something else, well, then things could be very bad indeed.
Music files such as MP3, WAV, and the like are highly unlikely to contain viruses. In theory I suppose, they could, but as I said it's highly unlikely and I've certainly never heard of one.
If you mean downloading music tools and programs, then you need to be very careful. Anything that's a program; a music player or a peer-to-peer networking program could contain viruses, spyware, or both. In fact, the peer-to-peer file sharing program Kazaa is notorious for the spyware that it carries with it.
Finally, if you're downloading from an untrustworthy site, all sorts of things are possible. It's quite possible that a site offering what it claims is a music file could, instead, be offering a different type of file entirely. Including a virus.