After leaving college, she moved to Manhattan and worked at the Gotham Book Mart, later opening the Four Seasons, a bookstore in Greenwich Village she operated from 1947-1956.
[1] Her music collections were built on old 78 rpm records of lesser-known performers including trumpeter and singer Valaida Snow, pianist-singer Georgia White, as well as others, such as Bessie Brown, Bertha Idaho and Maggie Jones.
She also found long lost songs from better-known artists such as Ida Cox, Ma Rainey, Bessie Smith and Mae West.
Though official sales figures were never disclosed, Reitz estimated that the four "independent women's blues" compilation albums each sold 20,000 copies.
Called "The Blues is a Woman", the program, narrated by Carmen McRae, featured music by Adelaide Hall, Big Mama Thornton, Nell Carter and Koko Taylor.