From the 1971 album, Gil Evans. Now many musicians launch a first album eponymously, but this was not Evans’s first album. Evans released his first LP in 1957 and had released at least six prior solo albums. It could explain why the 1971 German release was named, Blues In Orbit. In any event, when the album was remastered in 1981 it was released as Blues In Orbit and all subsequent releases have been under that name (with various reordering of the songs).