Final answer:
The blues had a profound impact on other musical traditions within and outside the United States, shaping genres like jazz and gospel. Internationally, the blues and jazz became influential and popular during the post-World War I era.
Step-by-step explanation:
The evolution of the blues had a profound impact on other musical traditions, both within the United States and beyond. The blues incorporated African musical influences such as percussion and syncopated rhythms, as well as bent or blue notes. From the blues, musical genres like jazz and gospel emerged, shaping the course of American music.
Within the United States, the blues heavily influenced the development of jazz. Jazz, known for its improvisation and bold rhythm and harmony, became a significant musical genre during the Harlem Renaissance. Jazz musicians like Louis Armstrong and Bessie Smith incorporated blues elements into their music, creating a fusion of styles.
Internationally, the blues and jazz genres became influential and popular. They provided the soundtrack for the dynamic changes of the decade following World War I. The distinctive blues and jazz styles became international genres and were celebrated for their unique musical elements.