McDonald & Sherby's sole contribution to the canon of 20th century music was Catharsis, an album which originally appeared on the appropriately-named Omniscient label (Omniscient Records 1426S) Catharsis was recorded in 1974 at Minneapolis's Sound 80 Studios. The album consists of six long tracks with a decidedly heavy guitar-based vibe, all well- recorded and delivered with considerable aplomb.