just a simple loop created with the most excellent PPG wavegenerator app for ipad. i like to keep it lo-fi, so the 22 khz output mode is used and directed into an Akai Headrush for looping purposes. i've always held the philosophy/superstition that the more bits of audio are missing from a sound (i.e. the more 'lo fi' a sound is) the better it will layer with others of its own ilk. think of the ultra-audio bits of destructed music fitting together like tetris, forming a solid yet jagged loop. it works well.