Half Gramme of Soma is a rock band formed in early 2011, based in Athens, Greece. Blending heavy rock sound with a wide range of influences, HGoS were introduced to the greek music scenery by their strong live appearances. In early 2013 they put out their s/t debut album, which was followed by member changes and many lives. A 5-track EP entitled ‘'Marche au Noir’‘, released in Autumn 2014 which was followed again by members changes and gigs around Greece alongside bands as Monster Magnet, 1000mods, Elder, Mars Red Sky, Stoned Jesus, Nightstalker, Samsara Blues Experiment and more. In May 2017 they released the second full length album 'Groove is Black’.