Coleman Horn joined Artillerymen in 1987, an EBM/Techno Industrial formation.
In 1992 he teamed up with Fred Gianelli and release four records on Fred's label Telepathic Recordings. Some remixing were done by Mark Gage including some co-written tracks and a collaborative EP. Most of C/Sphere composition are leftfield or mellow Detroit Techno Acid crossover. Coleman Horn is also involved in the movie soundtrack conceptual formation The Honey Sacrifice which he produced and arranged for.