As a freelance percussionist , Gaffaney has worked extensively with Kog Transmissions for live industrial groups such as Avotor .
As a freelance percussionist , Gaffaney created electro - pop versions of Head Like a Hole songs with Joost Langveld .
As a freelance percussionist , Gaffaney has worked extensively with Kog Transmissions for live industrial groups such as Avotor and created electro - pop versions of Head Like a Hole songs with Joost Langveld .