I spoke to Chris an hour ago and he told me for sure that it was the "old-style" Mutron III that he used on OTSWOF and Tormato, and ONLY the Tormato album and tour (since YES pretty much disbanded after that). He said he had never heard of a Colorsound Dipthonizer, and definitely never used one. In fact, he is looking to buy a couple of the old-style Mutron IIIs right now, if anyone knows where one is. The newer ones now being re-manufactured just aren't the same as the originals inside.

