Effective period / Period of releases: 1960 - 1983

Members: Sun Ra, Lonnie Tolbert, Calvin Barron, Matt Swift (2)

Vocal group consisting of four members from the West Side of Chicago, during the late 50s mentored by Sun Ra. Lead singer was Calvin Barron, died in 1980s; Lonnie Tolbert and Matt Swift were two of the other members. "[…] the Rays attended Arkestra rehearsals, typically working with Ra during breaks or with the entire band toward the end of the session. Many of these rehearsals were recorded." (from website)