With their cool, bop-inflected improvisations and classical chamber aesthetics, the Modern Jazz Quartet rose to prominence in the 1950s – expanding the jazz paradigm and bridging the gap between smoky jazz clubs and prestigious concert halls. Together for more than 44 years, they trotted the globe and played in nearly all 50 states, bringing their sense of swinging elegance to millions. As part of the Peabody Award-winning documentary series “Jazz Profiles,” this episode about the Modern Jazz...