Orion's Beethoven is an Argentinean psych/symphonic-prog band founded in 1969 that released two albums, Superangel in 1973 and Tercer Milenio in 1977. The group started with a lineup of 3 musicians: Adrian Bar (guitar), Jose Luis Gonzalez (drums), Roman Bar (bass & vocals). Jorge Liechtenstein replaced drummer Gonzalez in 1973 with the release of the first album. In 1981, the band's lineup expanded and they shortened their name to Orions.
The music in the first album mixed psychedelic elements with symphonic prog and classical pieces. Their second album is a more rock oriented release.