Listen to J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 Canone alla Quarta. (a 1 Clav.) online. J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 Canone alla Quarta. (a 1 Clav.) is an Unknown language song and is sung by Lang Lang. J.S. Bach: Goldberg Variations, BWV 988: Variatio 12 Canone alla Quarta. (a 1 Clav.), from the album Music for a Long Flight: Bach, was released in the year 2022. The duration of the song is 2:10. Download Unknown songs online from JioSaavn.