Listen to J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 a 1 Clav. Canone alla Quarta online. J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 a 1 Clav. Canone alla Quarta is an Unknown language song and is sung by Mahan Esfahani. J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 a 1 Clav. Canone alla Quarta, from the album Classical Study: Bach, was released in the year 2021. The duration of the song is 2:22. Download Unknown songs online from JioSaavn.