Bebop is a complex, fast-paced style of jazz music that emerged in the 1940s. Unlike the smooth, danceable jazz that came before it, bebop featured rapid tempos, intricate melodies, and lots of improvisation. Musicians like Charlie Parker and Dizzy Gillespie would take a familiar song and transform it beyond recognition, playing lightning-fast solos filled with unexpected notes and rhythms.

Bebop musicians often saw themselves as serious artists as well as entertainers, and their music encouraged careful listening rather than dancing. They played in small groups, typically just four or five musicians, and each performer got chances to show off their skill through elaborate solos.

Bebop was revolutionary because it helped change how many people thought about jazz, treating it more as an art form than just popular entertainment. It required tremendous technical skill and musical knowledge. A bebop saxophonist might play hundreds of notes per minute, weaving through chord changes with creativity and precision. While bebop wasn't as commercially successful as some earlier jazz styles, it deeply influenced almost all the jazz that came after it, and many consider it one of the most important developments in American music.