public override void Execute(object sender, HandledEventArgs e)
{
var playQueue = buffers[0];
ClearCurrentlyPlayingTrack();
if (playbackManager.HasPreviousTracks)
{
var nextTrack = playbackManager.GetPreviousTrack();
var nextTrackItem = new TrackBufferItem(nextTrack);
playQueue.Insert(0, nextTrackItem);
PlayNewTrackBufferItem(nextTrackItem);
playQueue.CurrentItemIndex = 0;
}
}