www.metaformonline.com Metaform (born Justice Aaron) is an American music producer, musician, and songwriter. He is considered a prominent figure in the development of instrumental Hip-Hop and first gained notice with the release of his highly acclaimed debut album Standing on the Shoulders of Giants, which was constructed entirely from samples. Metaform grew up in Los Angeles in a musical household. His Dad played Leonard Cohen, Simon and Garfunkel, and Ravi Shankar records, while Mom listened to Whitney Houston and Curtis Mayfield.