Why isn’t the amazing current generation of creative (jazz) musicians better known? Maybe because major artists of the not-so-distant past are practicing the art form at splendid peaks, overturning clichés about dwindling powers of octogenarians. Read my column in City Arts New York for a report that touches on Sonny Rollins, Roy Haynes and Muhal Richard Abrams, who tower over the start of the fall 2010 season.