I had the pleasure, about this time, to be introduced to Monsieur Martini. He was a very old man. His sister, nearly his own age, kept his house for him. She was reckoned a deep blue, and very well versed in all the arts and sciences: The great poet Metastasio had lived sixty year in her brother's house, upon the most friendly terms, and died in it. The colleges of Bologna and Pavia gave her the title of Dottoressa ; and deputations came from both those places, with her diploma. When I was admitted to her conversaziones and musical parties, she was in the vale of years, yet still possessed the gaiety and vivacity of a girl, and was polite and affable to all. Mozart was an almost constant attendant at her parties, and I have heard him play duets on the piano-forte with her, of his own composition. She was a great favourite of his.