I bought 'Orlando Finto Pazzo' last week (I liked the cover), and reading the enclosed booklet, it seems that Mr Vivaldi was rather prolific when it came to the old opera. So much so that he prefered working on it to the other music he wrote. There are now about 95 manuscripts of his operas/operettas which have been discovered, and are being worked on / with. Is this news to anyone else? I thought all he did was write The Four Seasons and a few more violin concertoes and stuff. ;) Ian.