Retrograde (Xaric Remix) Xaric brings his influence to the table with this cracking deep, dark and moody interpretation of Retrograde by Boombatcha. A nice technofied remix which should apeal to techno & progressive heads alike. Gatekeeper (Boombatcha break mix) The title says it all, a funky break beat mix of Gatekeeper by Boombatcha. This break mix harbours funk & trance elements, while riding nicely on a cool, progressive arrangement.