MORE than a Manager

n a holiday telegram to Martha Glaser, Erroll Garner asked about “my little princess.” He was referring to Glaser’s niece Susan Rosenberg. “My aunt was very present in my life growing up, as was Erroll,” Rosenberg says. “She was committed to jazz and, more broadly, African-American culture, and through her I learned a lot about the centrality of African-American music in American life. She was also an influence as an independent woman—her struggles as a business person before many women were