Microtub is a trio of microtonal tubists. Now, they’re far from the “Star System” (the title of the album and track 1). And their music is as remote as possible from “Square Dance” (the title of track 2). What we have here is two 20-minutes pieces of minimalist microtone-on-microtone studies that will make every semi-loose object in the house vibrate. Nice, elegant, somber and rather cold. “Square Dance” features some wonderful switches between flaps and unison.