AudioContext или Audio и JavaScript

var songs = [ 
  'http://zf.fm/download/4824354', 
  'http://zf.fm/download/3860794', 
  'http://zf.fm/download/2962900' 
]; 
 
window.onload = function() { 
  var audio = document.querySelector('audio'); 
  audio.song = 0; 
  audio.src = songs[audio.song]; 
   
  audio.onended = function(e) { 
    if(this.song == songs.length - 1){ 
      this.song = 0; 
    }else{ 
      this.song++; 
    }; 
    this.src = songs[this.song]; 
    this.play(); 
  }; 
};

<audio controls="">