On tap at The Oath, elite sour ale with wild brettanomyces-affected yeast acidity and dry oak-barreled raspberry adjunct produces mild Flanders Red Ale pleasantries and delicate Merlot-like eccentricites. Tannic red grape, vinous dark cherry and sour crab apple tartly coalesce beside mild raspberry vinaigrette pucker (above musky cellar funk). Sour heads may find Lilith uncompromisingly splendid.