Open Windows Media File Editor -
I am not totally sure of the name on this but it is standard with the window bundles and works like iMovie in Windows, I've played with my friends.
It Looks "like" in TimeLine view / plane ~ menu> view > "time line"
http://i137.photobucket.com/albums/q206/seanibu/exportedTotimelinSound.jpg
Notice on the bottom of the program the 3 areas below the video window (one is white, one os purple and one is grey, has no file).
The "white" file in the first line is video, so it will be grey unless the music is from your movie.
Drag and drop
, or import the sound file into the application. It will come up on the second line with the name on it - it will be purple in iMovie.
Zoom in and out of file (it will get longer as you zoom in) to adjust volume levels more precisely.
http://i137.photobucket.com/albums/q206/seanibu/ZoomIntoAudioClip.jpg
Now right click or "view" menu - "Show audio volume levels"
http://i137.photobucket.com/albums/q206/seanibu/RCshowAdoVoluLev.jpg
If there is a line running down the middle of the file already never mind and do this...
http://i137.photobucket.com/albums/q206/seanibu/AdjustVoluLev.jpg
you can do this unlimited times in songs.
http://i137.photobucket.com/albums/q206/seanibu/MultiVolumAdjust.jpg
To cut a section of song out, deselect "show volume levels" (the lines and adjustments to sound will disappear only from view) and "pull or drag" on the very end
or beginning of the song file - "erasing" what you don't want, as you pull it "disappears."
http://i137.photobucket.com/albums/q206/seanibu/Cuttingsoundfiles.jpg
- the
icon will change if you are "cutting off" opposed to "moving the whole video" make sure you are "cutting" Rather than just moving the song file around.
This sounded like all you needed to do. "Fade the song in or stat it without a long intro. So this should be it and ready for export. ••••
Supplemental - To put the new section of music (splicing) bring the next sound file in the same way as the first, move it way out of the way and edit it the same way but to the point you want the next file to start.
http://i137.photobucket.com/albums/q206/seanibu/pasteoradd.jpg
The files can overlap, so mix your volume levels to fade or stop at the persisce point you want, then pull them togather - the match-up of beet takes a little wile to get perfict.
••••
Exporting
Go to "Export Movie" or "Share" as it is called in Mac world

and select "Export using Custom Settings" or might be called "Advanced Export Settings" When you choose this it should bring up your options.
First should be a pulldown menu and has a "sound only" selection in it.
http://i137.photobucket.com/albums/q206/seanibu/chooseexport.jpg
make the selections and "export it" to your desktop or where ever you want it - are going to find it.
That should be it.