German composer and theorist, born in Dresden. Matriculated at Leipzig University in 1505 and lived in the city from 1520-50. An important early Protestant composer, he was a pupil of Isaac. His church music, which shows the influence of Josquin, includes two Protestant Easter Masses (in Latin) using both plainsong and Lutheran melodies, motets, and a through-composed Passion. His Isagoge de compositione (Leipzig, 1520; 6th ed., Wittenberg 1553) is an introductory text on counterpoint.