By Various. Edited by Nicolai Popov. For piano. Contains etudes (12) by various composers that concern the development of trill playing. Includes etudes by Bertini, Busoni, Bulow, Clementi, Cramer, Czerny, Heller, Hofmann, Neuhaus, Saint-Saens, Scriabin, and Tausig. Published by Edition Kunzelmann.
