*200 copies limited edition* While her main instrument is baritone sax, Misaki Motofuji is a multi-instrumentalist with an excellent command of other saxophone types including tenor and alto, as well as clarinet and flute. In concerts she additionally makes wide-ranging use of electronics, vocals, field recordings and various effects and objects, spontaneously assembling splendid, amazingly well constructed performances. In May 2022 Motofuji performed a concert of this type at Ftarri, Tokyo, which was released the following November on Hitorri as the CD "Yagateyamu," garnering widespread acclaim.

Since then, Motofuji has continued intermittently carrying out solo performances using numerous instruments, further deepening her skills in performance and musical structure. From the Hitorri label, two CDs documenting solo performances by Motofuji at Ftarri in 2024 are set to be released simultaneously.

"Biosphere" contains one track documenting a performance held on May 5, 2024, in which Motofuji used baritone saxophone, clarinet, voice, lip noise, field recordings, electronics, effects, radio and other small instruments. This major work begins extremely quietly with faint sounds, and passes through several phases of development over the course of its 58-plus minutes.