Percussionist Colin Blanton has spent the past decade quietly roaming the frontier of electronic music with a small rolodex of aliases. As Brin , he’s made textural ambient collages; as casualshrine , techno abstractions. His practice hinges on improvisation, resulting in blunt, expressive, and unpredictable work. Whether dabbling in calm, modulating drones or sizzling hypnagogia, all of his tracks brim with the manic intensity of an idea chanced upon through experimentation, then explored to its fullest extent before it collapses. On his latest album, Cost of Living , Blanton mints a new name, Rikki G. Godd , and a new direction, using a move to Chicago as catalyst for a suite of demented industrial jams that radiate incandescent fervor. Cost of Living wastes no time launching into long runs of ear-splitting raygun blips and bitcrushed wails, scored with frantic percussion. As Rikki G.…