Music for rotting fruit, the rattle of leaf, the rustle unseen, the spells cast and the mask that conceals . . . What better environs for "Sandy" shores on Halloween than vintage horror from composers Andrzej Korzynski, Acanthus, Goblin, Zdenek Liska, and Lubos Fiser. Along with David Lynch and Alan Splet, Demdike Stare, Fursaxa and Masoki Batoh.