SoiSong is the bright, stunning, and short-lived project conceived in 2007 by Ivan Pavlov (CoH) and Peter ›Sleazy∫ Christopherson (of Coil). The duo combined Pavlov’s uncompromisingly-visceral digital aesthetics with Sleazy's decadent, dark and whimsical approach to creation. Primarily located on the Eastern Pacific Rim, the two named the project after the Thai word for ‘two’ (song), as well as the seedy red-light quarters ("gloomy Soi’s, or alley-ways") of Bangkok. Together, they developed a unique, elegant, yet rather cryptical musical language.

SoiSong’s debut full-length »xAj3z«, originally released in 2009 on CD, is a digital reference to jazz: seemingly acoustic, effervescent, boundary breaking, digital-era entertainment where light rays and tropical heat are backed up by zeroes and ones. The album is a defining statement, and an arbiter of the possibilities in the (then-)developing late-2000s music landscape. Without the desire to be commercial, or convenient, SoiSong was not beholden to the conventions of easily defined tagging, and, in their own, »new, as-yet-un-categorizable genre,« with xAj3z being its masterwork.