When Grizzly Bear fails to move me – and they failed quite often on their last album Veckatimest – it’s because they settle for a pretty sound that is seemingly satisfied with being pretty and little else. On Thursday, the band released “Yet Again”, the second taste of its upcoming fourth LP, Shields. And while “Yet Again” is pretty and lacks a clear-cut destination, Ed Droste’s wistful vocals, buttressed by gorgeous multi-layered harmonies and Daniel Rossen’s melancholy guitar, prevent the track from becoming the musical equivalent of wallpaper. It is the type of track that signals a change is blowing, albeit an uncomfortable one. The fall can be a lovely time of year, after all.