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During the recording sessions for the album , the band used the studio 's multitracking capabilities to layer their sound , which allowed George Harrison 's use of a volume pedal and incorporation of intricate chordal devices to enhance his guitar sound .
 person: George Harrison
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: George Harrison