The midi file is available via my songbook page-

http://www.geocities.com/matalzi/john_of_.mid

The notation image is

http://www.geocities.com/matalzi/badenyon.jpg

The directory in which you can find the whole lot is here
http://www.geocities.com/matalzi/priests13.html#

Anyone know anything else about the song or who John was.....

Conrad