LEISURE BIRDS Tetrahedron (2014 UK strictly limited edition 7-track vinyl LP from the Minneapolis four-piece. Using simple melody hypnotic rhythm and highly constructed analog synthesis Tetrahedron constructs a world on the edge of fiction and reality. The vinyl looks barely played and comes housed in the hype-stickered gatefold picture sleeve which comes complete with the download code voucher and individually hand-numbered textured art print!) **Limited to 100 Cop ies Only**ÞÞA1. PatternsA2. Miner Of LightA3. Seven SpiralsA4. TetrahedronB1. reT 120813B2. Geodesic LinesB3. Waveforms