Johann Sebastian Bach created some of the most significant music in history, including A Keyboard Practice Consisting of an Aria with Thirty Variations for the Harpsichord—commonly known as the Goldberg Variations. Goldberg is Johann Gottlieb Goldberg, a young musician in the court of Count Keyserlingk, a Russian ambassador living in Dresden. It isn’t known for certain why Bach’s difficult composition was named for the young man, but Anna Harwell Celenza gives us one possible story based on extensive research.