actionscript 3.0 function calling using button click - actionscript-3

Question

im creating a simple flash playlist using buttons, in my stage i have 4 buttons which is button for song1,song2, stop and play. i have a working code for this one, but i decided to revise it because my previous code is like, per song they have each stop and play button,so i created this one to have a dynamic stop and play, i created a function for each song, the function will change the filename of the song to be loaded,
heres the catch, so i first pick a song, (either song1 or song2) then i click stop, then when i select a new song this error appears
Error: Error #2037: Functions called in incorrect sequence, or earlier call was unsuccessful.
at flash.media::Sound/_load()
at flash.media::Sound/load()
at playlist_fla::MainTimeline/songSelect1()
i think its not calling the second function because i cant see the trace i put inside it,anyway heres my code, sorry for the long post,
THANKS IN ADVANCE
var mySound:Sound = new Sound();
var myChannel:SoundChannel = new SoundChannel();
var myTransform = new SoundTransform();
var lastPosition:Number = 0;
var song;
song1.addEventListener(MouseEvent.CLICK,songSelect1);
function songSelect1(e:MouseEvent):void{
song = "<filenameofthe1stsong>";
mySound.load(new URLRequest(song));
myTransform.volume = 0.5;
myChannel.soundTransform = myTransform;
lastPosition=0;
trace(1);
}
song2.addEventListener(MouseEvent.CLICK,songSelect2);
function songSelect2(e:MouseEvent):void{
song = "<filenameofthe2ndsong>";
mySound.load(new URLRequest(song));
myTransform.volume = 0.5;
myChannel.soundTransform = myTransform;
lastPosition=0;
trace(2);
}
btnStop.addEventListener(MouseEvent.CLICK,onClickStop);
function onClickStop(e:MouseEvent):void{
lastPosition = myChannel.position;
myChannel.stop();
}
btnPlay.addEventListener(MouseEvent.CLICK,onClickPlay);
function onClickPlay(e:MouseEvent):void{
myChannel = mySound.play(lastPosition);
myChannel.soundTransform = myTransform();
}

Answer 1

Correction:
According to Adobe:
Once load() is called on a Sound object, you can't later load a
different sound file into that Sound object. To load a different sound
file, create a new Sound object.
So, creating a new sound object would be the only way to fix it.
- - - Original Post - - -
If you enable debugging in your flash settings, it'd be easier to determine exactly what line is causing issues. That said, your code doesn't look incorrect apart from defining your sound transform twice. Try this:
var mySound:Sound = new Sound();
var myChannel:SoundChannel = new SoundChannel();
var myTransform = new SoundTransform();
myChannel.soundTransform = myTransform;
var lastPosition:Number = 0;
var song;
song1.addEventListener(MouseEvent.CLICK,songHandler);
song2.addEventListener(MouseEvent.CLICK,songHandler);
btnStop.addEventListener(MouseEvent.CLICK,onClickStop);
btnPlay.addEventListener(MouseEvent.CLICK,onClickPlay);
function songHandler(e:MouseEvent):void {
switch (e.currentTarget.name) {
case "song1":
songSelect("<filenameofthe1stsong>")
break;
case "song2":
songSelect("<filenameofthe2ndsong>")
break;
}
}
function songSelect(songPath:String):void {
mySound.load(new URLRequest(songPath));
myChannel.soundTransform.volume = 0.5;
lastPosition = 0;
trace("Loading " + songPath);
}
function onClickStop(e:MouseEvent):void {
lastPosition = myChannel.position;
myChannel.stop();
}
function onClickPlay(e:MouseEvent):void {
myChannel = mySound.play(lastPosition);
myChannel.soundTransform = myTransform();
}