I just got the "Dr. Cheskey Incredible...." sacd which is basically a 5.1 version of the old ping-pong stereo demo records. (Anyone else remember when stereo first came out?) You must hear the Japanese Drums and the Tympani Drum Circle to really appreciate what our lfm's can do. The 20 hz heartbeat can be heard as a chest thump but it's there! Incredible, even if amusical!