This is a free fantasy for organ, on a very familiar tune. Eight or so minutes in length. It is written as 4 short movements,but with very slight modification could easily be considered as a one movement piece. The mp3 uses gpo organ.
Saintly Fantasy for Organ [Complete]
edit, 28 Feb: New complete version just uploaded, 2:45 pm. No longer 4 movements, all blended into a single movement, other assorted changes to make it a bit less klutzy to perform.
For an abridged version, see below.