Was offered a substantial fee to write and conduct works for london audiences, so he made two visits to the city (1791-1792 and 1794-1795) where he was treated as a celebrity, presented to the royal family, and awarded an honorary degree of doctor of music from oxford. his final twelve symphonies were first performed there by an orchestra that consisted of about sixty players. all in all his two trips netted him the equivalent of twenty years' salary?