New York City Ballet's life-affirming new works boost the spirit
Powerhouse. That's the word that came to mind after I saw New York City Ballet's program of 21st-century works at the Kennedy Center Opera House on Wednesday night. Personality, warmth, style: Those qualities burst out of the dances by Alexei Ratmansky, Christopher Wheeldon and Justin Peck. Add the elegance of the previous night's Balanchine program, which alternates with this one, and you have a ballet company whose…