Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Forgotten master of the blues

Paul Garon, the author of the classicBlues and the Poetic Spirit (Roots of Jazz)gives both a biography and examination of the lyrics of Peetie Wheatstraw aka "The Devil's Son-In-Law" a popular blues guitarist and singer in the 1930's and 40's but one who did not gain recognition in the wake of the 60's blues revival. Although the biographical data is slim, Garon puts Wheatstraw's career and lyrics into the historical perspective of the development of a citified style of blues that falls somewhere in between the downhome Delta style and the more sophisticated big band and jazz oriented style that was prominent in the 40's. Garon fills a missing link in blues history with this and his longer text on Memphis MinnieWoman With Guitar: Memphis Minnie's Blueswhose "When the Levee Breaks" was another example of a blues song being 'appropriated' and copyrighted by Led Zeppilen.