The annual Zeitgeist new Music Ensemble annual Hallowe’en event takes place Thursday October 31 through Sunday Nov 3 at Studio Z in St Paul. The event features haunting sounds, spooky stories and commissioned musical works with Hallowe’en themes. Phil Nusbaum spoke with some Zeitgeist New Music people including bass clarinetist Pat O’Keefe, who composed one of the pieces Zeitgeist will perform.