Head Ache is an "instrumental" track made by running a Yamaha DX7s through an Alesis MIDIVerb4 set on a "tape delay" simulation with very high Feedback and Delay settings. This sound was then resampled in Ableton Live and reprocessed through the MIDIVerb4 again. There are several layers of such resampling with the DX7s and the MIDIVerb4 set on different settings. Also in the mix is a loop of Aleister Crowley talking about the Scarlet Woman, which is also processed through the MIDIVerb4.
credits
from
Reality,
released 12 January 2008
Programming, Production, Sampling, Mixing - Jason Woyak
Additional mixing - Tom Burt