On 7–8 October 1791, about two months before his death, Mozart wrote to his wife: ‘Right after you left I played two games of billiards with Herr Mozart (who wrote the opera for Schikaneder’s theatre); then I sold my nag for 14 ducats; then I had Joseph summon Primus and bring me black coffee, with which I smoked a wonderful pipe of tobacco; then I orchestrated almost all of Stadler’s rondo’. In orchestrating the finale of the Clarinet Concerto under the influence of caffeine and nicotine, Mozart was very much a man of his age.