I've search throught the forum and I don't find what I need. Maybe someone can lead me in the right direction? Maybe past threads, or helping me with this?

I want to load an .mp3 with loadSound("music.mp3",true); i already did that, the music plays good. Now i want to be able to manipulate the url of that mp3 on a .txt file or a .xml file. I have loaded variables from a textfile and it's perfect, but only with getURL. I tried this:

Actionscript Code:
music.loadSound (musicURL, true);

varReceiver = new LoadVars();
// load the variables from the text file
varReceiver.load("sounds.txt");
// trigger something - when the variables finish loading
varReceiver.onLoad = function(){
    trace("happened");
    musicURL=this.musicURL;
   
}

In the text file:

PHP Code:
&musicURL=http//mysite.net/music.mp3& 
Also i tried
Actionscript Code:
musicURL=this.musicURL+.mp3
and
Actionscript Code:
music.loadSound (musicURL+.mp3, true);
and
Actionscript Code:
music.loadSound ("musicURL+mp3", true);

The url loads from the textfile reading like this in the output panel:

Error opening URL 'file:///C|/wwwmysite/eskapate/root/undefined'

Is in this section , or in Action Script 2? Please help