This piece starts with a bowed crystal bowl, the sound of which passes though a ring modulator, then a resonating flanger, then a resonating delay, then a delay in a long continuous loop. The sound is further processed by a reverb. Everything is analog except the the looping delay.
Throughout most of the piece, I take long, slow draws of the bow against the edge of the bowl, with several seconds between each stroke. As this is going on, I progressively modify the other devices to modify the sound in various ways. The general shape of the piece is to slowly lower in pitch as it grows spatially, and eventually to come back up. Perhaps something like a fainting spell and recovery in slow motion.
You can see the setup of the equipment (in my studio) here: http://daveseidel.tumblr.com/post/44468330521
Image: http://en.wikipedia.org/wiki/File:Pietro_Longhi_027.jpg (Public Domain).