Alfred Mathis-Rosenzweig (1897-1948) was a Viennese musicologist and critic who studied at the universities of Budapest and Vienna. From 1933 he embarked on producing a large-scale study of Mahler but at the time of his death the manuscript was left unfinished. Although it was presumed lost until 1997, the unfinished typescript, written in German, had been deposited in the library of the Guildhall School of Music & Drama. In 2003, the School's...