By Various. Edited by Nicolai Popov. For Piano. Published by Edition Kunzelmann.

By Various. Edited by Nicolai Popov. For Piano. Repetition ohne Fingerwechsel (compiled and edited by Nicolai Popov). Technic book

By Various. Edited by Nicolai Popov. For Piano. Piano Technique - Repetition with changing of fingers, Volume 2. Published by Edition Kunzelmann.

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.