Leadbelly

Big Bill Broonzy

Louis Armstrong

https://www.loc.gov/item/ihas.200033252

http://hubguitar.com/music-theory/blues-harmony-and-theory

http://teacher.scholastic.com/activities/bhistory/history_of_jazz.htm

https://www.stlmag.com/The-Best-St-Louis-Ragtime-Musicians-of-All-Time/


https://www.loc.gov/item/ihas.200035811/


https://interactive.wttw.com/dusable-to-obama/jazz-and-blues