Australian Industrial band formed by Graeme Revell. Released three albums and a handful of singles under various names such as Sozialistisches Patienten Kollektiv, System Planning Korporation, Surgical Penis Klinik and SepPuKu, before changing genre to mainstream synth pop, and at the same time the line-up changed to only Graeme and his wife Sinan Leong. Graeme Revell has written more than 40 movie scores, including The Crow, Boxing Helena, From Dusk Till Dawn and Spontaneous Combustion.
Graeme has also made a couple of solo albums, most notably The Insect Musicians, consisting solely of sampled insect sounds.
The pre-mainstream transition SPK sounded quite a lot like Throbbing Gristle, whose record label Industrial Records released a couple of singles and a cassette tape for SPK.