Guruh Andhika Putra, also known as Gatra, is a beau who is part of the turmoil of Surabaya, active himself with managing an independent radio called Radiogasm, owner creative production house called Sawtland and compromises with the market as music director in several leisure businesses such as hotel, hospitality, etc.. Behind the 24/7 schedule, Gatra is a producer and dj who vigorously slash his beats at an underground party amidst the withering weather of Surabaya, exposing House, Techno, Breaks, Electronic and Experimental on his deck, Gatra has begun to form a idiosyncratic sound in this frail metropolis.