Music for Onmyo-Ji is a two-CD album of music for the books of Reiko Okano. The first disc is by Reigakusya, the second by Brian Eno and J. Peter Schwalm. A double-CD, released only in Japan, which marks the first major team-up between Brian Eno and Peter Schwalm before their widely released Drawn From Life CD. The music on disc one is comprised of 14 tracks of traditional Japanese instruments, which are more appropriate for this CD, which is meant to accompany the Reiko Okano/Baku Yumemakura manga. The second disc leads one to ask what Schwalm actually adds to the mix in this collaboration.