Guy A Marco

Guy Anthony Marco (New York, 4 October 1927) is an American musicologist and librarian whose career spans music documentation, library science and research into music of the seventeenth and eighteenth centuries. His profile is useful for understanding how the specialist music librarian emerged in the United States.

He trained at the Conservatory of Music of Chicago, where he took his first degree in 1951, and then undertook advanced studies at the University of Chicago, earning a master's and a doctorate in music (1952 and 1956) and a master's in library science (1955). Between 1953 and 1960 he worked as a librarian and teacher at the Chicago Musical College and at Chicago City Junior College. From 1960 to 1977 he directed the school of library science at Kent State University, where he promoted the training of music librarians. He later held posts at the Library of Congress, at San Jose State University in California and in the United States Army, and was a senior fellow at Rosary College in River Forest, Illinois, where he directed the course for music librarians.

His legacy lies chiefly in bibliography and reference tools. He published studies on the earliest music printers of continental Europe, took part in the edition of Zarlino's Le istitutioni harmoniche, and wrote reference guides such as Information on Music and Opera: a Research and Information Guide. He also worked as an international consultant on library planning.