2017 1-4955-0592-8 Over the past thirty years, Thomas DeLio, American composer and music theorist, has produced a highly original body of music and writings that have established his artistic and scholarly voice as unique amongst his peers. His writings have addressed music by a diverse collection of American and European composers including Iannis Xenakis, Morton Feldman, John Cage, Alvin Lucier, Arnold Schoenberg, Erik Satie and Luigi Dallapiccola.