Diamond Edition is a gathering between Raster-Noton operator Olaf Bender (aka Byetone) and label affiliate and fellow experimental techno manufacturer Carsten Nicolai (aka Alva Noto). They are joined up with by Atsuhiro Ito, who uses the Optron — a musical instrument from the musician’s producing described as customized fluorescent tubes offering “noisist counterpart.” When Bender and Nicolai shaped Diamond Version, both already had an extended history of functioning jointly; beside Frank Bretschneider, they created several releases beneath the name Sign. Agreed upon to pioneering digital music label Mute, Gemstone Edition debuted in Sept 2012 with EP1, a brief group of pared-down but muscular techno. Extra numbered EPs of identical construction implemented that November and Dec, aswell as the next March and could. Leslie Winer, Kyoka, and Neil Tennant added vocals to a full-length record, CI, released in 2014.