public ActionResult Edit(int id)
        {
            if (!HttpContext.CheckAccess(
                    ChinookResources.AlbumActions.Edit,
                    ChinookResources.Album,
                    id.ToString()))
            {
                return(this.AccessDenied());
            }

            var album = _musicRepository.GetAlbum(id);

            if (album == null)
            {
                return(RedirectToAction("Index"));
            }

            var vm = new AlbumEditViewModel(album, _musicRepository);

            return(View("Edit", vm));
        }