Barbirolli Society: Dedicated to the music of Sir John Barbirolli. Contains biography, discography, and society journal articles.Havergal Brian Society: Official site. Diary of his life, listings of compositions, and society activities.International Machaut Society: Devoted to the study of poet and composer Guillaume de Machaut. Contains Machaut links and society newsletter.The American Brahms Society: Contains general information, a list of publications, and Brahms research on the web.The Charles Ives Society: Biography, bibliography, works, and descriptive catalogue.