"When I am grown I shall be as famous as Hasse or Graun!"

According to Nannerl, writing in her diary after Wolfgang's death, "Johann Christian Bach [shown here, upper left, in the superb (both as painting and as portraiture) portrait by Thomas Gainsborough], music master of the queen, took Wolfgang between his knees.  He would play a few measures; then Wolfgang would continue.  In this manner they played entire sonatas. Unless you saw it with your own eyes, you would swear it was just one person playing."