3798
Norman Petty produced most of these new editions , drawing upon unreleased studio masters , alternative takes , audition tapes , and even amateur recordings ( some dating back to 1954 with low-fidelity vocals ) .
 person: Norman Petty
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Norman Petty