From Greek Myths for Children :: “And Hades told Orpheus he could leave Underworld and return home with his lover following, if only he would play a song on his Lyre and promise to never look back... Orpheus turned to go and began to play, plucking the strings in such a way as the sonic waves bounced off the Underworld Walls so rapidly, the sub-audio particles of dust created a holographic mirror image of Orpheus’ lover standing in front of him... And it was in this way Orpheus tricked Hades, as it was this Resonant Sonar image of his lover who led the way like a beacon of light out from the dark of Underworld.” Musique Mécanique par le Théâtre Électrique :: "Diamond Dogs" by David Bowie