How Do I Add Music to an Existing Narration?

I am using Windows 7 x64 SP1 and Audacity 2.0.4.

I have an existing narration that I am pleased with and would like to add music to it. There is an existing tutorial about how to add a narration to music, but I want to do the opposite.

The narration is about 15 minutes long, and I have several pieces I would like to use with it, fading each piece in and out at the beginning and end of that piece, and keeping the levels under the narration.

Any help will be much appreciated.

Dave Jenkins

Perhaps this tutorial will help: