IDE :: Importing A Mp3 File - Nested Anonymous Function?

I am trying to play an MP3 File in Flash Lite 2.1 (I'm using Flash 8 to develop it). The filename of the MP3 file is imported from an XML file.Here is a copy and paste from the help file on how to do this:

// create a new Sound object
var my_sound:Sound = new Sound();
// If the sound loads, play it; if not, trace failure loading.
my_sound.onLoad = function(success:Boolean) {

[code]....

When I test this code on its own, it does work fine for me. However, I want the above to be executed inside a function that does a number of other things...
Here is a sample of what I'm trying to get working.

function myMusic() {
// create a new Sound object
var my_sound:Sound = new Sound();
// If the sound loads, play it; if not, trace failure loading.

[code]....

I think it's got to do with the fact that once I put it inside a function you are nesting functions (there is a function call from the onLoad event).

I tried changed the line:

my_sound.onLoad=function(success: Boolean) {
to
my_sound.onLoad=myFunctionName(parameters go here)

and then I created a funciton called myFunctionName but I wasn't sure how to send the sound object or what parameters the function should have or how to get the .start() method to work inside the new function.