Researching John Dowland

I always research a piece of music and/or the composer as I arrange it and a summary of what I’ve found is included in the books I assemble. For John Dowland, there is a definitive book by Diane Poulton (you’ll notice her index number at the bottom of the piece I arranged) written in 1972 which is available for free at I haven’t read the whole book and use it for reference. She was a an English lutenist and musicologist.
I also try to find original folios of the music, many of which are downloadable. Here are two samples of “My Lord Willoughby’s Welcome Home” from notebooks of 1610.
My Lord WIlloughby - Folio V1   My Lord WIlloughby - Folio V2