[1] His first job in the music business was as a promoter for Eastern Allied Associated Record Distributors.
[1] From there he moved to Warner Brothers, eventually relocating to Los Angeles.
[1] His brother, Jerry Greenberg, recruited him to work at Atlantic, and the two co-founded Mirage.
[1] He worked with several successful artists including The Rolling Stones, AC/DC and Whitesnake.
[1] Greenberg died on September 11, 2009, in West Hills, Los Angeles after suffering from a stroke at the age of 75.