What is a Tune

Damian gets into it.

I very occasionally step into the sulphurous, Boschian landscape that is X, and get involved in a ferocious flamewar like the one represented in this screenshot:

What did I mean by 'melody' in that tweet? I was not sure when I wrote it, so I thought I'd best try to figure it out.

I started with The Universal Truth: the stuff you like is the best stuff eve…