If there's one thing you can usually rely on pokemon for, regardless of the quality of the gen itself, it's a lit OST. BW and BW2 arguably had the best music the series has ever produced and SM was a fine return to form with lots of memorable tracks, so why the hell did XY's soundtrack suck so badly? There's barely a single memorable tune in the entire game, literally the only thing worth salvaging is Mewtwo's theme and that's a remix of a classic. What went wrong?