private void MovePreviousPlaylistItemToHistory(int idxOfPreviousPlaylistItem)
{
if (idxOfPreviousPlaylistItem >= 0)
{
PlaylistItem previousPlaylistItem = _playlistItems[idxOfPreviousPlaylistItem];
_playlistItems.RemoveAt(idxOfPreviousPlaylistItem);
previousPlaylistItem.ResetTimeSinceAdd();
_historyItems.Insert(0, previousPlaylistItem);
}
}