internal ExportTrack(Track tr, ExportAlbum eal)
        {
            _Tr = tr;

            Album = eal;

            this.Artist = tr.Artist;
            this.Name = tr.Name;
            this.Path = tr.Path;
            this.ISRCName = tr.ISRC == null ? null : tr.ISRC.Name;
            this.TrackNumber = tr.TrackNumber;
            this.Duration = tr.Duration;
            MD5 = tr.MD5HashKey;
            Rating = tr.Rating;
            this.DateAdded = tr.Interface.DateAdded;
            this.LastPLayed = tr.Interface.LastPLayed;
            this.PlayCount = tr.Interface.PlayCount;

        }
 internal ExportTrack(Track tr, ExportAlbum eal, string iPath)
     : this(tr, eal)
 {
     Path = iPath;
 }