In the post–World War II years, jazz started to split off into many different directions, spurring a fragmentation that expanded the creative range of the idiom but caused long-lasting divisions among artists and fans (the so-called jazz wars). The first fault lines emerged between traditional and modern jazz exponents, but during the 1950s and early 1960s, many different styles emerged—including cool jazz, hard bop, soul jazz, West Coast jazz, modal jazz, Third Stream jazz, and various experimental approaches. This chapter traces these stylistic developments, and their leading exponents. It looks at the life and work of Miles Davis, John Coltrane, Thelonious Monk, Stan Getz, Charles Mingus, and Bill Evans, among other major jazz stars of the era, and assesses key albums such as Kind of Blue, Mingus Ah Um, and Giant Steps.
