From the Bandcamp page: “The Anthology Spectra Ex Machina brings together rare documents pertaining to so-called occult phenomena, most of them taken from little-known archives. In the course of three volumes, this series traces an audio history of parapsychology through the exploration of spiritualism and haunted houses (vol. 1); musician mediums (vol. 2); experiences of extrasensory perceptions (clairvoyance, psychokinesis, etc.) and electronic voice phenomena (vol. 3).”