“It always wants something more of me,” Belinda McGuire said to me with a grin a few days before the opening of her solo performance, “Waltz Slaughterhouse Requiem.” Something true of dance, I thought, and perhaps especially true for solo work. McGuire's performance of her own choreography, a personal reflection, “Slaughterhouse/Requiem” was highly original and impressive, and is one of my highlights of the year in dance.