Although many musicians participated in the bebop revolution, and history has undoubtedly forgotten many who were in the trenches of the Harlem jam sessions, it is clear that the most important and influential architects of bebop were , and .

fast tempo, complex chord progressions with rapid chord changes and numerous changes of key.

Explanation:

Bebop or bop is a style of jazz created in the right on time to mid-1940s in the US, which highlights tunes described by a quick beat, complex harmony movements with fast harmony changes and various changes of key, instrumental virtuosity, and extemporization dependent on a blend of symphonious structure, the utilization of scales and periodic references to the song.

Bebop created as the more youthful age of jazz artists extended the innovative prospects of jazz past the famous, move situated swing style with another "artist's music" that was not as danceable and requested close listening.[1] As bebop was not proposed for moving, it empowered the artists to play at quicker rhythms. Bebop performers investigated propelled harmonies, complex syncopation, changed harmonies, broadened harmonies, harmony substitutions, hilter kilter stating, and perplexing songs. Bebop bunches utilized musicality areas such that extended their job.

the answer is b. i'm positive it's that answer.

answer///design;