F. Sor 20 Studies ed Segovia

 "The 20 studies in this volume were chosen from the most effective and beautiful ones written by Fernando Sor for the guitar. Not many Masters have succeeded in their studies for the gradual development of the instrument's technique in achieving the right balance between the pedagogical purpose and the natural musical beauty. The studies of Sor can be used not only for the development of the technique of the student, but as well for the preservation of it at its heights for the masters.  They contain the exercises of the arpeggios, chords, repeated notes, legatos, thirds, sixths, melodies in the higher register and in the bass, interwoven polyphonic structures, stretching exercises for the fingers of the left hand, for the prolonged holding of the "cejilla" and many other formulas, which if practised with assidulity and inteligence, will develop vigor and flexibility in both hands and finally lead to the better command of the instrument." - Andre Segovia