Specialist in music of the 19th and 20th centuries, editorial theory, critical theory, and gender studies. Alfred Einstein prize of the American Musicological Society, 1984. Richard S. Hill award of the Music Library Association, 1984. National Endowment for the Humanities fellowship, 1985, Guggenheim fellowship, 1992. Kallberg publishes widely on the music and cultural contexts of Chopin, most notably in his book, Chopin at the Boundaries: Sex History, and Musical Genre (Harvard University Press). His reconstruction of Chopin's first sketch for a Prelude in E-flat minor for the eventual set of Preludes, op. 28, attracted world-wide coverage in the press. Kallberg prepared a critical edition of Luisa Miller for The Works of Giuseppe Verdi, and also wrote the articles on "Gender" and "Sex, Sexuality" for The New Grove Dictionary of Music and Musicians, 2d ed. His current projects include books on Chopin's nocturnes, on Chopin's things, and an investigation into the links between ideas of landscape and modernism, especially in Scandinavian music from the first half of the twentieth century.
He is general editor of New Perspectives in Music History and Criticism (Cambridge University Press).