Sachiko Matsubara (Japanese: 松原 幸子; born 1973), better known by her stage name Sachiko M, is a Japanese musician. Her first solo album, Sine Wave Solo, was released in 1999. Working in collaboration with Ami Yoshida under the name Cosmos in 2002, Sachiko released the two disc album Astro Twin/Cosmos (2) which was awarded the Golden Nica prize in Ars Electronica, 2003."Ars Electronica: Astro Twin/Cosmos" Retrieved 2 September 2018 She released Good Morning Good Night, a collaborative album with Otomo Yoshihide and Toshimaru Nakamura, in 2004.
