African retention in the music styles or artists

The midterm will consist of a four page paper focusing on African retention (i.e. rhythms, harmony, melody, dance, etc….) in at least two of the styles or artists we have discussed in the first half of the semester. Be specific and detailed in your discussion. Sight examples from compositions, books or articles to substantiate your arguments and sight your sources.
style and artist: Ragtime-Scott Joplin Blues-John Lee Hooker