klerical error is a studio and publishing company started by artist and producer callum john brown in 2026. based in the east midlands, klerical error got its start in the early 2020s as cjb's first venture into self publication and production on his own records (under various now lost pseudonyms/projects).

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he has now produced for a wide variety of projects, including northampton based band headswitcher - an alt rock grunge act, and biz - a canadian deep house artist from british columbia.