The Ex “Mudbird Shivers” is a fantastic introduction to their varied material, which is high-energy post-punk in a similar vein to Fugazi, Crass, and Shellac. Incidentally, they have toured with the former and have had material produced by Steve Albini. Fitting that this abrasive and pragmatic producer should be hired to capture their energy which is often best witnessed on stage, where spontaneity is at its optimum. That isn’t to say that that energy isn’t here. Wit a guest appearance of saxophoneplayer Han Buhrs.