In May 2023, the experimental music/acoustic project "Utsunomia" was launched by acoustic geniuses Yasushi Utsunomiya + Gallery Nomart + .es (dot es). MIX". Starting with the simultaneous release of their debut trilogy in May of the same year, Utsunomia Mix has released five albums in six months and two more in the following year, 2024. The Utsunomia Mix series is packed with unique features, including the first-ever combination of live performances, links with contemporary art, and unique recording, mixing, and mastering. The fourth and fifth albums in the series are also included in the series, and the first live project to combine the two. The album features the sound space of the too-gorgeous live recordings by four musicians who participated in the fourth and fifth albums of the series - sara(.es), Nakatani Tatsuya, Otomo Yoshihide, and Isohashi Shinichi - as well as the first album's guest, Mikawa Toshiji, in what can be called a culmination of their work! The liner was written by Minoru Shimizu.