clipped from: calitreview.com 
Jazz began to detour from the Armstrong style in the 1940s in the bebop era. Yet the greatest of trumpeters of that day, Miles Davis and Dizzy Gillespie, acknowledged his influence on their playing. On this YouTube clip, you can see Armstrong and Gillespie play together. Gillespie’s debt to Armstrong, both as a performer and a musician, is evident:
Today, traditional trumpeters like Nicholas Payton and Wynton Marsalis take after Armstrong, and to a certain extent even the most avant -garde, off-the-wall free jazz practitioners are responding to what Armstrong pioneered.