Rock and roll, a popular music craze of the mid-1950s, turned a loud, fast, and sexy set of sounds rooted in urban, black, working class, and southern America into the pop preference as well of suburban, white, young, and northern America. By the late 1960s, those fans and British counterparts made their own version, more politicized and experimental and just called rock—the summoning sound of the counterculture. Rock’s aura soon faded: it became as much entertainment staple as dissident form, with subcategories disparate as singer-songwriter, heavy metal, alternative, and “classic rock.” Where rock and roll was integrated and heterogeneous, rock was largely white and homogeneous, policing its borders. Notoriously, rock fans detonated disco records in 1979. By the 1990s, rock and roll style was hip-hop, with its youth appeal and rebelliousness; post‒baby boomer bands gave rock some last vanguard status; and suburbanites found classic rock in New Country. This century’s notions of rock and roll have blended thoroughly, from genre “mash-ups” to superstar performers almost categories unto themselves and new sounds such as EDM beats. Still, crossover moments evoke rock and roll; assertions of authenticity evoke rock. Because rock and roll, and rock, epitomize cultural ideals and group identities, their definitions have been constantly debated. Initial argument focused on challenging genteel, professional notions of musicianship and behavior. Later discourse took up cultural incorporation and social empowerment, with issues of gender and commercialism as prominent as race and artistry. Rock and roll promised one kind of revolution to the post-1945 United States; rock another. The resulting hope and confusion has never been fully sorted, with mixed consequences for American music and cultural history.
In the post-1945 period, jazz moved rapidly from one major avant-garde revolution (the birth of bebop) to another (the emergence of free jazz) while developing a profusion of subgenres (hard bop, progressive, modal, Third Stream, soul jazz) and a new idiomatic persona (cool or hip) that originated as a form of African American resistance but soon became a signature of transgression and authenticity across the modern arts and culture. Jazz’s long-standing affiliation with African American urban life and culture intensified through its central role in the Black Arts Movement of the 1960s. By the 1970s, jazz, now fully eclipsed in popular culture by rock n’ roll, turned to electric instruments and fractured into a multitude of hyphenated styles (jazz-funk, jazz-rock, fusion, Latin jazz). The move away from acoustic performance and traditional codes of blues and swing musicianship generated a neoclassical reaction in the 1980s that coincided with a mission to establish an orthodox jazz canon and honor the music’s history in elite cultural institutions. Post-1980s jazz has been characterized by tension between tradition and innovation, earnest preservation and intrepid exploration, Americanism and internationalism.
In January 1938, Benny Goodman took command of Carnegie Hall on a blustery New York City evening and for two hours his band tore through the history of jazz in a performance that came to define the entire Swing Era. Goodman played Carnegie Hall at the top of his jazz game leading his crack band—including Gene Krupa on drums and Harry James on trumpet—through new, original arrangements by Fletcher Henderson. Compounding the historic nature of the highly publicized jazz concert, Goodman welcomed onto the stage members of Duke Ellington’s band to join in on what would be the first major jazz performance by an integrated band. With its sprit of inclusion as well as its emphasis on the historical contours of the first decades of jazz, Goodman’s Carnegie Hall concert represented the apex of jazz music’s acceptance as the most popular form of American musical expression. In addition, Goodman’s concert coincided with the resurgence of the record industry, hit hard by the Great Depression. By the late 1930s, millions of Americans purchased swing records and tuned into jazz radio programs, including Goodman’s own show, which averaged two million listeners during that period. And yet, only forty years separated this major popular triumph and the very origins of jazz music. Between 1900 and 1945, American musical culture changed dramatically; new sounds via new technologies came to define the national experience. At the same time, there were massive demographic shifts as black southerners moved to the Midwest and North, and urban culture eclipsed rural life as the norm. America in 1900 was mainly a rural and disconnected nation, defined by regional identities where cultural forms were transmitted through live performances. By the end of World War II, however, a definable national musical culture had emerged, as radio came to link Americans across time and space. Regional cultures blurred as a national culture emerged via radio transmissions, motion picture releases, and phonograph records. The turbulent decade of the 1920s sat at the center of this musical and cultural transformation as American life underwent dramatic changes in the first decades of the 20th century.