School of Velocity. The more advanced of Czerny's best-known exercises, this set emphasizes the development of rapid passage work for both hands. Includes historical and performance notes, as well as easy-to-read new music engraving. Schirmer Performance Editions are designed for piano students and their teachers as well as for professional pianists. These editions offer insightful interpretive suggestions, pertinent fingering, and historical and stylistic commentary. Prepared by experienced artists and master teachers, these publications provide an accurate, well-informed score resource for pianists.