Only one solid cadence in 4 minutes, but an interesting rhythmic feel throughout. You might find it a bit dissonant, but as Pontius Pilate said to somebody or other, "Quod scripsi, scripsi".

the mp3 link (gpo organ)

Canon Fugue mp3

A bit less reverb than usually heard on organ, but this would be played in a concert hall, not in a cathedral. The reverb is about the same as I remember from Davies Hall in San Francisco.

If you want to look at the score:

Canon Fugue
The sound attached to the score is GM, not good.