Note (Jan 2019): I have updated the ZIP file to include a separate track (at no extra charge) including part swaps with Guglielmo, as commonly practised. Not all of these are completely obvious but most are straightforward. They occur in numbers 3, 6, 13, 18 and 31. In 18 (act 1 finale) there are a couple of spots where Don A needs to revert to his conventionally printed line to make his words (different from G) fit, for instance bars 524-527. In 31 (act 2 finale) there are two very small part swaps occasionally done, just 4 bars each - these are not included in this recording as they are really quite trivial.