American producer (Garret Lockhart) whose 2017–2020 catalogue on mau5trap and Armada placed dark techno and trance in productive dialogue, anchored by the 2019 mau5trap "ACID 444" EP.
i_o was the recording name of American producer Garret Lockhart, a Virginia-based artist whose catalogue across 2017–2020 placed dark techno, acid, and trance-melodic content in productive dialogue. His mau5trap output anchored a distinctive lane within Deadmau5's editorial direction, and the 2019 three-part EP series — opening with "ACID 444" — became the definitive document of the project's fast-paced, acid-driven aesthetic. He also released through Armada and collaborated with names including Tommy Trash and Grimes across the active period.
The catalogue prefigured the techno-trance crossover register that the early-2020s festival mainstage circuit would later adopt at scale, and the back catalogue continues to circulate widely through the streaming and DJ-tool ecosystem. Active period: 2017–2020. (Garret Lockhart, 1990–2020.)
Sound Style
Fast, dark techno with trance-melodic content folded in — the kind of acid-driven, peak-time architecture that the late-2010s mau5trap editorial direction championed and that anticipated the techno-trance crossover register the early-2020s mainstage circuit would eventually adopt at scale.