At about the time Schoenberg and Stravinsky were changing the language of music in Europe, a new musical style called jazz was being developed in the United States. It was created by musicians – predominantly African Americans – performing in the streets, bars, brothels and dance halls of New Orleans and other southern cities.
Jazz can be described generally as a music rooted in improvisation and characterized by syncopated rhythm, a steady beat, and distinctive tone colours and performance techniques.
Although the term ‘jazz’ became current in 1917, the music itself was probably heard as early as 1900. We do not know exactly when it started or how it sounded, because this new music existed only in performance, not in musical notation. Moreover, very little jazz was captured on recordings before 1923, and none at all before the Original Dixieland Jazz Band recorded in 1917.
Since its beginnings, jazz has developed a rich variety of substyles such as New Orleans Style (or Dixieland), swing, bebop, cool jazz, free jazz, and jazz rock. It has produced such outstanding figures as Louis Armstrong, Duke Ellington, Benny Goodman, Charlie Parker and Miles Davis. Its impact has been enormous and worldwide, affecting not only many kinds of popular music but the music of such composers as Maurice Ravel, George Gershwin and Aaron Copland.
The world of jazz has witnessed many changes since its beginnings at the turn of the twentieth century. Geographically, its centre has shifted from New Orleans to Chicago, Kansas City and New York. Today, it is hard to speak of a ‘jazz centre’, since good jazz is heard worldwide, from Paris to Tokyo.
Jazz has changed in function too. For a long time, it was basically music for dancing; but since the 1940s, many newer jazz styles have been intended for listening. Now we are as likely to hear jazz in a concert hall or college classroom as in a bar or nightclub.
The image of jazz has also change. It was originally condemned for its emphasis on sexuality, but it has long since become respected as a major American art form.