At once hyper-familiar in its omnipresence and deeply inhuman in its measured-in-centuries longevity and endurance, plastic supplies, surrounds and scares. Seemingly negligible, plastic is always ready to hand but also always somewhat suspect, casting toxic shadows onto the everyday. True to form, the band have assembled a promiscuous array of examples of this sturdy-yet-ersatz family of materials: Bakelite dominos, Styrofoam coolers, polyethylene waste containers, PVC panpipes, pinpricks of bubble wrap, silicone gel breast implants and synthetic human fat. Though it has the tight editing chops, pop forms and bizarre sound palette of their early albums such as Quasi-Objects and A Chance to Cut Is A Chance to Cure, Plastic Anniversary has a distinctive sound because of the foregrounding of plastic horns and plastic drums played by human beings. The bounce and snap of the duo"s programmed rhythms are here supplemented by a sweatier and more unruly human element provided by a surprising cast of guest musicians. Members of the horn and drumline sections of the Whitefish Highschool Bulldogs from Whitefish, Montana were recruited by Matmos and persuaded to take part in recording sessions at Snowghost Studios where they played objects sourced from a nearby recycling center, including massive plastic garbage bins. This was later combined with additional plastic percussion performances by Greg Saunier, a drummer known for his hyper-expressive, mercurial playing as a founding member of the band Deerhoof.