Load sound on key press

Okay! I have sounds ( A-Z ) and when i press the A button i want the A sound to play , i have fixed everything . The button is pressed and everything works , except my sound! i tried just to have e sound in the frame and it worked … How should i do ?

Btw . heres the code

In the frame

Q = new Sound();
Q.attachSound (“Q”);

In the movieclip Q movieclip

onClipEvent(enterFrame){
if(Key.isDown(81)){
this.play();
trace (“Q”)
}
}

and in the libary i have an sound with the linkage of Q