Here we have "Get It On!", a "20 original hits, 20 original artists" compilation released in 1974 by RONCO. Lots of different stuff - here are a couple of notable tracks:
- a cover version of Bob Marley's "Stir It Up" by Johnny Nash (best known for his 1972 hit "I Can See Clearly Now")
- A disco-fied version of "Also Sprach Zarathustra", a.k.a. the main theme from the film 2001: A Space Odyssey.
- "Cover of the Rolling Stone" by Dr. Hook and the Medicine Show
Also some Barry White, two songs by The Ohio Players, and a track from the Broadway musical Godspell ("Day By Day"), among other various hitmakers of the mid 70s.