Originally released in Japan in 2015 on DJ Emma's Nitelist Music as part of its Acid EP series. JD Twitch scored a copy and both tracks became firm favorites in his sets. Twitch was kindly granted permission to reissue it on Optimo Trax. Hiroshi Watanabe's "Infinity Sign" is a hypno ecstatic acid piano-tingling monolith. Kuniyuki's "Acid Air" is a slow building organic percussive acid freak-out that will cause a freak-out on the floor. It is hard to do anything with a 303 that is interesting these days but both the tracks on this 12" are 100% club classic.