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Composers such as Carl Czerny , while deeply influenced by Beethoven , also searched for new ideas and new forms to contain the larger world of musical expression and performance in which they lived .
 Carl Czerny, Beethoven
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Carl Czerny, Beethoven