Constant line-up changes are part and parcel of The Fall, to the point where Guardian journalist Dave Simpson almost drove himself mad trying to track down every ex-member for his book The Fallen. And yet, in the last decade they’ve been strangely stable, releasing an unprecedented four albums with an entirely unchanged line-up, and a fifth that merely added a second percussionist. Now, though, not only are they back to a single drummer, but they’ve also lost Elena Poulou, who’d been manning the keyboards since as far back as 2002, making her one of the band’s longest serving members ever,…