She is best known for working as a record producer and music executive with several popular singers in the 1960s including Dionne Warwick, the Shirelles, Tammi Terrell, Chuck Jackson, and B.J.
She often hung out at the Turf restaurant in New York City as she was enamored with the atmosphere surrounding the Brill Building.
A friend of her husband, Freddy Bienstock, helped her to get in the record business by one day inviting her over to the Hill & Range Music offices while he was working with his cousins Jean and Julian Aberbach.
[3] Greenberg was a natural and immediately began exploring her options of career paths in the music industry.
In 1963, the Shirelles learned that a trust holding their royalties which Greenberg and Scepter allegedly had promised to give them and they were supposed to receive on their 21st birthdays, did not exist.
[6] Scepter met the action with a countersuit for quitting; both suits were withdrawn in 1965 after an agreement was reached.
[7] Greenberg, who was not a musician, once said of herself that she was "a white woman who was in a black business and who couldn't carry a tune.
[4] Around the same time, she moved her labels' offices to 1650 Broadway, a building which also housed Aldon Music (employing Carole King and Gerry Goffin among other songwriters).