After a relatively quiet 2012 from Berlin bass mavens Objekt (pictured above) and Cosmin TRG, both artists will release a collaborative single as part of Bleep's ongoing Green Series, a joint partnership between the online music retailer, design agency GiveUpArt, and photographer Shaun Bloodworth. The Green Series kicked off last fall with a single featuring Karenn (a.k.a. Blawan and Pariah) and The Analogue Cops, and will continue with the February 25 release of BLPGRN002, the first single from both Objekt and Cosmin TRG in a year. Objekt's contribution, "Shuttered," appears to give his signature skittering productions more swagger, tightening his signature manic drumwork. Cosmin TRG's "Auster" is more traditional techno fare, a faded 4/4 beat masking a wall of synth feedback. You can preview both tunes in the player below, and check out further details here.