Key up Audio Stop

I'm making an interactive piano tutorial, and I have a strings scale attached to the key down of several keys. Here is an example of one key down;

if (e.which == 65) {  //A

          var getShot = sym.getSymbol("soundtestA").getSymbol("Asound");

          getShot.play("A");

}

It works fine, but upon lift it keeps playing through - making the notes slow and delayed.

I'm not too code savy. How can I link the key up to either pause or stop the sound bite?