Czerny’s total number of works ran to Opus 1000 and hundreds of these were technical studies. Of these volumes, over a dozen are still in general use with Op.299 retaining its lead as the most popular volume of piano studies ever written. It’s usefulness in modern piano study is due to the fact that it offers practical training in well-articulated pianistic passagework, developing those characteristic motion=virtuoso music of the Romantic period