2115
It is a portable guitar amplifier with a built-in tape echo , which became used widely in country music ( Chet Atkins ) and especially in rock and roll ( Scotty Moore ) .
 person: Chet Atkins; person: Scotty Moore
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: Chet Atkins; person: Scotty Moore