Okie, I am convinced that the tritone was banned by the Church. I cannot think back to how I learned this, but I will check with Critter, who is an Early Music-ologist. He is bound to tell me where to look.

It was something to do with the way the scale was divided up, and had to do with measurements and physics rather than the wierdness of the sound (from memory).

Check back here tomorrow - I hope to have the answer from the Critter's Mouth then.

Callie