album_name: Goldberg Variations
artists.artist_gid: a9f6a9f8e52e491e8a462211caf89c50
artists.artist_name: Johann Sebastian Bach
artists.role: ARTIST_ROLE_COMPOSER
artists.artist_gid: 56d9667d703143b89c47cc50b4bb23c5
artists.artist_name: William Wolfram
artists.role: ARTIST_ROLE_MAIN_ARTIST
name: Goldberg Variations, BWV 988: Variation No. 21