Famous German writer and theorist on music. He was born in Moravia and was educated at Vienna at the Gymnasium, the Conservatory and the University. In 1874, with Mottl and Wolf, he founded the academic Wagner Society, which later became an important organization. In 1878 he took the degree of Doctor of Laws and in 1880 of Doctor of Philosophy, while in 1881 he became teacher of musical science at the University. In 1882 he was sent as delegate to the International Liturgical Congress at Arezzo, of which meeting he wrote a detailed report. With Spitta and Chrysander, he founded in 1884 the Vierteljahrsschrift fur Musikwissenschaft, of which he was editor for a year. In 1885 he was made professor of the science of music at the University of Prague and in 1898 was appointed to the same position at the University of Vienna, where he succeeded Hanslick. Since 1894 he has been editor-in-chief of the Series of Denkmaler der Tonkunst in Oesterreich. He has also written important treatises on counterpoint and harmony.