Will Forster was a London civil servant who amassed several properties in London, a harpsicall and a large chest of eight viols, which were distributed between his children when he died in 1645. However, this was not his only legacy since he also copied a book of 72 keyboard pieces, of which over a half is devoted to William Byrd, who died less than a year before the book was completed. Much of the Byrd content is unique to this volume, and Forsters sources appear to have been copies that were c...