Hidden in Plain Sight: Musical Treasures in the Penn Library Curated by Marjorie Hassen Otto E. Albrecht Music Library University of Pennsylvania

Allen J. Winigrad Collection of Performing Artists Leonard Bernstein during a Philadelphia Orchestra Rehearsal 1976 Photographer: Allen J. Winigrad

Table of Contents Introduction Manuscript Collections: Institutions Manuscript Collections: Individuals Sheet Music Images Conducting Scores Music Manuscripts: 15th-18th Centuries Music Manuscripts: 19th & 20th Centuries Landmarks of Music Theory