 But whereas Whiteman continued to write and perform an extensive amount of popular music—and did so almost exclusively after he suffered from the economic pressures of the Stock Market Crash of 1929—other big bands, like Henderson's, transitioned into the swing era.Through this transition, Henderson and Redman had an approach to musical innovation quite distinct from Whiteman's--an approach firmly rooted in the jazz tradition.Specifically, the duo utilized the spontaneity and virtuosity of improvisation so integral to jazz as a unique musical genre.