Simple sound questions

I have on my main timeline


muz = new Sound();
muz.attachSound("music");
muz.start(0,999);
winz = new Sound();
winz.attachSound("wind");
winz.start(0,999);

So it’s starting two different sound loops

then on my stop music button I have


on (release) {
	_parent.muz.stop();
	gotoAndPlay("mon");
}

This all works fine except when i click on the button it turns off BOTH sound instead of the one i’m targeting

anyone know why?

Sandman9