A new formation in underground rap music is here. Its name is Audio Ruff. Founded by musicians who have achieved success and proven their talent, Audio Ruff has started producing music without delay. The group members are KURSUN, who has found his own style with the songs he makes and is being closely followed by everyone; MEHMET KERIM, who changed his stage name to KMK after achieving success in Olympos; and SIR MC, one of the most prolific and talked-about names in Izmir…