Sounds on rollover of mc's in loop

I’ve got the following code:


for (var i = 1; i<=4; i++) {
    var face = this["face"+i];
    face.id = i;
	face.useHandCursor = false;
    face.onRelease = function() {
        this.gotoAndPlay("release");
        userClick = userClick+this.id;
        clickAmount();
        trace("userClick = "+userClick);
    };
	face.onRollOver = function() {
		this.gotoAndPlay("over");
	};
	face.onRollOut = function() {
		this.gotoAndPlay("up");
	};
	face.onPress = function() {
		this.gotoAndPlay("press");
	};
}

Basically just looping through 4 movie clips with instance names face1,face2,face3,face4.
What i need to do now is add a different sound to each onRollOver function. I’ve already got the sounds in my library but how do i make it so the appropriate sound plays for the appropriate mc? i know i have to set the linkage id to something for all the mc’s like sound1,sound2, etc. and add something to the loop regarding that but im kinda confused.