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His influences ranged from the blues of Big Bill Broonzy , the jazz of Charles Mingus , to the classical piano of Sergei Rachmaninoff .
 Big Bill Broonzy, Charles Mingus, Sergei Rachmaninoff
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Big Bill Broonzy, Charles Mingus, Sergei Rachmaninoff