For Morrowind and Oblivion it was as easy and drag and drop. I had so much good music to listen to while tooling around in Oblivion. I don't see that option anymore. I think they are XMA files now...

Anyone know how to add music to Skyrim. Add not replace? Is this something we are going to have to wait for with the creation kit?

I'd like to know, too. I've been using a program called VLC media player to play the XMA format, but it's really bad quality. It also seems to be able to convert music into every format except XMA.

To add music I am almost 100% certain we will have to wait for the CK. To replace music, well, that's already possible, though I haven't looked into converting between XMA and other formats.