<mx:ControlBar>
     <mx:HBox width="100%">
      <mx:Button label="Pause/Play" id="btn_playToggle"/>
      <mx:Button label="Stop" id="btn_stop"/>
      <mx:Spacer width="100%"/>
      <mx:Button id="btn_previous" label="Prev"/>
      <mx:Button id="btn_next" label="Next"/>
      <mx:Spacer width="100%"/>
      <mx:Label id="tf_playtimeDisplay"/>
      <mx:VSlider 
       id="volumeSlider" 
       liveDragging="true" 
       value=".75" minimum="0" maximum="1" 
       height="34"/>
     </mx:HBox>
    </mx:ControlBar>