Thomas DeLio is a composer and theorist, internationally renowned in both fields. He has composed music for soloists, chamber ensembles and orchestra, and is especially noted for his work in computer music. His compositions have been performed worldwide and are recorded on numerous labels including Wergo (Germany), 3D Classics (France), Neuma, Centaur, Capstone, ERMMedia and Spectrum. His music is published in the US by Neuma Publications, Sonic Art Editions and, in Italy, by Semar Editore. He has participated in conferences, festivals and residencies throughout the world.
DeLio has published over thirty essays in such journals as The Journal of Music Theory, Perspectives of New Music, Interface, Artforum, Contemporary Music Review (London), Revue d'Esthetique (Paris), andMusikText (Cologne). A number of his essays have been anthologized, and translated into German, French and Italian. His books includeCircumscribing the Open Universe (University Press of America; Italian translation, Semar Editore, Rome), The Music of Morton Feldman (Greenwood Press), and The Amores of John Cage (Pendragon Press).
Biographical citations about DeLio include the New Grove Encyclopedia of Music (1999-2000 edition) and Baker's Biographical Dictionary of Musicians (8th edition). A book about his work, entitled Essays on the Music And Theoretical Writings of Thomas DeLio was published by The Edwin Mellen Press in 2008. It contains essays by leading composers and scholars from Europe and the United States. Contributors to this volume include: Herman Sabbe, Professor, Ghent State University (Belgium); Robert Morris, Professor, Eastman School of Music; Agostino di Scipio, Professor, University of Bari (Italy); Christopher Shultis, Regents Professor, University of New Mexico; Wesley Fuller, Professor Emeritus, Clark University; and Morris Palter, Professor, University of Alaska. A companion volume entitled Thomas DeLio: Collected Essays Vol. I (1980-2000) will be published by the Mellen Press in 2013.
In 2011 the University of Maryland Special Collections Division established a new archive, The Thomas DeLio Papers. This archive will hold Professor DeLio’s sketches and manuscripts for his music, books and essays; master tapes from numerous recording sessions; journal articles, books CDs and DVDs. In addition it will hold his correspondence, including letters from such composers, poets and artists as Iannis Xenakis, John Cage, Alvin Lucier, Morton Feldman, Elliott Carter, Sol LeWitt, P. Inman, among others. Eventually all his teaching materials will also be held in this collection as well as work by his students in both theory and composition.