This drone uses four identical patches within Rollz-5.  The square wave oscillator is patched through a Gong, used as a filter, and then through AVDog, used as a VCA.  AVDogs are triggering themselves.  The Rollz LFOs weren’t used at all.  The Gong outputs also pass through Ultrasounds.  All 12 outputs are mixed in.  The performance consists of gradual adjustments to the filters.