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());
}