91371
Keyboardist Tom Constanten was a member of the Grateful at the time of the Fillmore Auditorium concert , but he left the band before the Fox Theatre concert .
 Tom Constanten
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tom Constanten