Supreme.ja has been played on NTS shows including Gang Fatale , with Letters Re-werk'd (Supreme.JA Remix) first played on 5 February 2017.

Founded by Gotthard Ortner in 1994, Supremeja is more than a pure electronic music production: Supremeja stands for the electronic lifestyle, full of admiration for the electronic arts, sounds and innovations. In spite of the new electro technical ways the focus goes conform to the rules of classic Electro productions. Authenticy marks out the Supremeja productions and strictly follows the “Electronic Lifestyle”.