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From singing into a microphone in his dad 's studio at age 3 , to getting a mini drum kit at age 5 in addition to some exposure to piano through his brother , Daniel Ferguson , then eventually a borrowed acoustic guitar at age 12 , synthesizers and drum machines at 14 , Bryan discovered the instruments that would create music in his own developing studio .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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