Two new Traverse City breweries are celebrating with grand opening parties this weekend. Today at The Workshop Brewing Company in the Warehouse District is hosting a Pub Warming Party. The fun kicks off at 11 a.m. and lasts all day. Local food, organic beer, live music with The Accidentals, Aqua Gatos and Jimmy Olson and The Groove. More details on Facebook. Tomorrow (Sept. 8), Brewery Terra Firma (2959 Hartman Rd.) starts the celebrating at 2 p.m. with food, beer (including the release of a new triple IPA) and traditional Scottish tunes with the Grand Traverse Pipes and Drums. More details also on Facebook.