Titanium.Media.systemMusicPlayer playback duration ?

Hello

is it posible to get playback duration ? to make seek bar ! or trace track playback !

if not how can i play ios local music track on createsound !

var localMusicList = Ti.Media.queryMusicLibrary({});
        var player             = Titanium.Media.systemMusicPlayer;
         player.setQueue({ items: [ localMusicList[0]] });                            
         player.play();