Original sentence: Bach's biographer Johann Nikolaus Forkel, which involved the composition of a set of variations by Bach as a soporific to help the insomniac Count Keyserlingk get to sleep.Keyserlingk's favorite chamber harpsichordist was none other than the 14-year-old Goldberg, whose technical accomplishments were already so spectacular that they made it possible for him to perform a work of such extraordinary difficulty
Edited sentence: Bach's biographer Johann Nikolaus Forkel, which involved the composition of a set of variations by Bach as a soporific to help the insomniac Count Keyserlingk fall asleep.Keyserlingk's favorite chamber harpsichordist was the 14-year-old Goldberg, whose technical accomplishments were so spectacular that they made it possible for him to perform a work of such extraordinary difficulty