Although the young harpist of today must not neglect the solid foundation of harp technique to be gained in the practice of the Etudes of Bochsa, Dizi, Parish-Alvars, and other notable virtuosi of the Romantic Era, the student's musical development requires the study of the master of all musicians, J.S. Bach. For this purpose, Marcel Grandjany presents a group of 12 etudes based on Sonatas and Partitas for violin alone by J.S. Bach. Some of this material can be used as concert repertoire, but the larger part is designed to be practiced in various ways for technical development.