Apparently, Pink Floyd are set to release new music. Well, ‘new’ music. It says so on Polly Samson’s Twitter. And frankly, she should know. After all, she wrote most of The Division Bell, and now lists herself as the writer of something called The Endless River, a record made by her husband David Gilmour, featuring various other people, and credited to Pink Floyd. And if all this turns out to be the case (which it does) then there’s every chance that music fans are in for a pretty grim Autumn, as another catastrophically over-content monstrosity will be dumped upon us,…