Bebop 咆勃爵士乐
Bebop or bop is a style of jazz developed in the early to mid-1940s in the United States, which features songs characterized by a fast tempo, complex chord progressions with rapid chord changes and numerous changes of key, instrumental virtuosity, and improvisation based on a combination of harmonic structure, the use of scales and occasional references to the melody. This style of jazz ultimately became synonymous with modern jazz, when both categories reached a certain final maturity in the 1960s.