Record Store Day 2017 Release. Janus is a compilation of rare material from the Sun Ra Arkestra, drawing from tapes recorded between 1963 and 1970, taken from both live and studio performances. The space-age jazz shaman conjures up a variety of styles and moods along the way. The album is finally making its vinyl debut with this limited edition, psychedelic swirl color vinyl for Record Store Day 2017. The tracks have been remastered, and pressed on audiophile-grade yellow/black swirl vinyl at Pallas in Germany.