What difficulties surround the notion of “Defining”the blues?

Q) What difficulties surround the notion of “Defining”the blues? Which African musical and cultural characteristic seem to have persisted in African American music in general an in the blues in particular? What types of African American music existed both prior to and following the Civil War that may have informed early blues practice? In your answer please on the perspectives espoused by LeRoi Jones (Amiri Baraka) and Robert Palmer, or others, when appropriate.
****In THE ESSAY CRAFT A STRONG INTRODUCTORY PARAGRAPH THAT PRESENTS THE CENTRAL QUESTION OR ISSUE AND YOUR PRIMARY AGUMENT. ORGANIZE THE SUPPORTING PARAGRAPHS IN A CLEAR FASHION AND CONCISELY SUMMARIZE PERSONAL, HISTORICAL, AND CULTURAL CONTEXT FOR THE WORK.

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