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in 1946 ) , and the University of Michigan ( MA in music literature in 1954 ) , Brown studied under such teachers as Harry Dean , Lubka Kolessa , Boris Roubakine , Leo Smith , Arnold Walter , and Healey Willan .
 University of Michigan, Brown, Harry Dean, Lubka Kolessa, Leo Smith, Arnold Walter, Healey Willan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 University of Michigan, Brown, Harry Dean, Lubka Kolessa, Leo Smith, Arnold Walter, Healey Willan