public ActionResult CountAlbumLength(int idAlbum, int idBand)
        {
            ViewBag.Band = BandService.GetBand(idBand);
            var album = AlbumService.GetAlbum(idAlbum);

            ViewBag.Album       = album;
            ViewBag.AlbumLength = AlbumService.CountAlbumLength(album);
            return(View());
        }