If artistic stature worked by osmosis, Christian Wolff could claim greatness based on that alone. “My father met Brahms,” he said, easing into conversation at a sturdy wooden table in the dining room of his Hanover, N.H., home. Wolff’s father was 6 or 7. Wolff’s grandfather, a violinist, conductor and professor, knew Brahms personally and professionally, he said. Wolff, who turns 90 on Friday, is associated with a different pantheon.

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Persons: Christian Wolff, “, Brahms, ”, Clara Schumann’s, Wolff’s, Robert Schumann, Wolff, John Cage, Morton Feldman, Earle Brown, David Tudor, Merce Cunningham, John Ashbery, Jasper Johns, Robert Rauschenberg Organizations: New York School Locations: Hanover, N.H, Bonn, Germany, New York