Substance B is a french producer, mostly breackore and dirty electro. Very first track in 2004 and very first album in 2005. He's the owner of the netlabel PEEP records & released music on labels such as Marasm or Sociopath Recordings.

Ruby My Dear was first discovered under the name Doc Colibri with EPs on Sociopath Recordings or Love Love Records. With his new project, he released on Acroplane Recordings & on the well-known french breakcore label, Peace Off. In June 2012, his new album was released on Ad Noiseam...