Rosalind Ashford helped the group to distinguish themselves from the other girl groups in the label including the pop-oriented Marvelettes and the doo-wop-influenced Supremes with a rougher, brassier gospel-influenced sound. Reeves was a brassy alto while Annette was a deep contralto, and Rosalind was a high soprano. Like the Supremes' Florence Ballard, the Marvelettes' Wanda Rogers and The Four Tops' Abdul "Duke" Fakir, Ashford registered as the high background vocal in Vandellas records. After "Quicksand" gave the group a third top forty pop hit, Beard left to start a family with her new spouse. Reeves recruited a former member of The Velvelettes,
Girl group teens, especially girls, bought the girl group records accordingly. Girls were also more easily exploited and more accessible to a youth, as well as broader audiences. Additionally, as the girl group structure persisted through further generations, popular cultural sentiments were incorporated into the music. The appearance of "girl power" and feminism was also added, even though beginning groups were very structured in their femininity. Girl groups would give advice to their audience, or there would be a back-and-forth dialogue between the backup singers and the main singer. It would be simplistic to imply that girl groups only sang about being