3 Prog Rock Giants

I have already answered that question once, twice and this is the last time.   Try getting that into your head or if you have another of your brain farts, go see the doc first.  And try also to avoid your pseudo-condescension because it is hilarious; yes - shock and horror - we have heard all these albums that you go on and on.   I had said Red is heavier than Yes or Genesis so comparing Musical Box to anything KC had released up to that point is irrelevant here.   I don't think you have any convincing Yes or Genesis exhibits to demonstrate that they could be heavier than Red, so you deliberately twisted the argument just to score a point.   For the last time, stop arguing and learn to discuss instead.

Dude, the Black Sabbath released only after Court of the Crimson King.   You can make a pedantic objection if you like but the point stands that 21st century Schizoid Man was the heaviest rock music up to that point when it came out.  Yes and Genesis weren't even close.   

I had obviously made a comment comparing the track Red to Genesis or Yes, not KC tracks prior to Hogweed, Gates of Delirium, Musical Box.  So now you are just twisting the argument in a desperate bid to 'win' it.   If that does not characterise trolling, I don't know what does.   And I don't see how Gates of Delirium is anywhere near as heavy as Red, not even close.   Neither of those bands ever had such an industrial sound as that lineup of KC.   I do agree that Hackett's solo on Musical Box anticipates the approach of metal lead guitar but for heavy rhythm guitar, KC is a lot more like metal than Genesis or Yes ever were.