“I have also, for practice,” Wolfgang Amadeus writes to his father from Mannheim, “arranged the air ‘Non so d’onde viene’ which has been so charmingly composed by Bach. Just because I know that of Bach so well, and it pleases

Trying to establish himself in Vienna, Wolfgang Amadeus was incredibly busy as he writes to his sister. “You must not suppose, from my not answering you, that you and your letters are troublesome. I shall always, dearest sister, with the