public bool Operacion(ArtistEE oArtistEE, int op)
        {
            ArtistMPP oArtMPP = new ArtistMPP();

            return(oArtMPP.Operacion(oArtistEE, op));
        }
        public List <ArtistEE> ListarArtist()
        {
            ArtistMPP oArtistMPP = new ArtistMPP();

            return(oArtistMPP.ListarArtists());
        }