I am 99% sure that this is not Williams, but I have not drawn a conclusion. And I'm fine being the only guy in the room that isn't 100% sure... it's no fun always knowing everything and never learning anything. I'd personally just like to solve the mystery as to what soundtrack/composition this came from (I don't think any of these "leaks" has ever gone unsolved, but, hey, get Robert Stack on the line)...