Catalogue 90 - Modern Music: 20th Century Part I Contains 291 items featuring works by composers who were active mainly in the first half of the 20th century and whose works represented "modern" concepts.
This catalogue draws attention to interesting aspects of contemporary music publishing as well as the important relationship of musical composition to the visual arts. In some cases, print runs of music of this era were surprisingly small, resulting in the comparative scarcity of some of these editions.