62933
The artists he has worked with include : Brian Katz , The Evergreen Club , Arraymusic , New Music Concerts , Alan Hetherington , The Canadian Chamber Ensemble and Les Amis Concerts .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None