How did jazz evolve in the 1920s?!
Question: Only in the 1920s please.
Answers: Only in the 1920s please.
you really should check out the PBS documentary Ken Burn's JAzz. A very detailed history of jazz from it's creation in New Orleans up through the present times. It is composed of ten one and one half hour episodes. You should be able to get it from netflix, or your local library.
Louis Armstrong heard in his head what he wanted to play, and...
I'm not gonna write your essay for you.