Great performance! it triggers me, because of mt getting back to my roots: on my website 
http://my.vision-4-life.nl/index.php?id=71&L=1 you can listen all my music and recently I learned  how to create a church organ in the Tyros. But for playing church organ two manuals and pedals would be the real world. Can you tell me how you arranged the MIDI connection and all? Is it possible to play one voice on the Tyros 4 and another Tyros 4 voice on the M-Audia MIDI keyboard, and a Tyros 4 Bass voice on the pedal. I look forward to your response. 
The church organ pieces are "Deux Antiennes" and "Heures Mystiques no. V"
Kind Regards, Fred