Oh that was fantastic, thanks. It's not often I have reason to listen to organ music. Almost makes one want to purchase an organ.

I don't care for the 12 études d'interprétation, but neither do I care for Rachmaninoff's Études-Tableux. I find both to be too pedagogical. Which makes no sense; according to Wikipedia they're meant to be "picture pieces". So I haven't always put much stock in études.