JS Record Player - Code Review

gistfile1.js

$(document).ready(function() {

 $(".record").on("click", function() {
   playSymphony();
 });

 var playTrack = function(track) {
   track.play();
 }
//Naming: Does it pause one track or all tracks?
 var pauseTrack = function(tracks) {
   tracks.each(function(index, sample) {
     (tracks[index]).pause();//nice use of the higher order function looping over each track
   });
 };

 var playSymphony = function() {

   $('#stopwatch').timer('resume');
   if ($(".record").hasClass('rotate')) {
     $('#stopwatch').timer('pause');
     pauseTrack( $("audio") );
   } 
   //Clould you have used else here to improve readability?
   if (!($(".record").hasClass('rotate'))) {
     
     playTrack($("audio").get(0));//nice grabing all the audio elements and selecting them with .get()
     setTimeout(function(){
       ($("audio").get(0)).pause();
     }, 3100)
     setTimeout(function(){
       playTrack($("audio").get(1));
       playTrack($("audio").get(2));
     }, 3000);
   }
   $(".record").toggleClass('rotate');
 };
//The toggleClass outside of your conditional statement was good use of the negative case example
});//What happens when you stop the symphony before 3 seconds?