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This was the period when the explosion of musical creativity in the Low Countries was at its highest ; that region was producing more composers than all of the rest of Europe combined , and these composers were emigrating into other areas , especially into royal and aristocratic courts who had the means to employ them .
 Europe
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Europe