internal SingleTrackUpdater(Track track, IMusicSession iContext):base(track.SingleItemCollection(), iContext)
        {
            _Tr = track;
            if (_Tr == null)
                throw new Exception("Track can not be null");

            this._Artist = _Tr.Artist;
            this._Name= _Tr.Name;
            this._TN= _Tr.TrackNumber;
            this._DiscNumber = _Tr.DiscNumber;
        }