| Title | Principes de la Harpe : Suivis de 18 Airs d'une difficulté graduelle Pour suivi d'Exemples. Œuvre VIII |
| Author | Ragué, Louis Charles |
| Place | Paris |
| Publisher | Le Duc |
| Year | 1786 |
| Physical Description | 33 p. |
| Language | French |
| Type of Harp | Simple Action Pedal Harp |
| Target Audience | Adults |
| Speed of Progression | Fast |
| Structure of Method | Chapters on the fundamental techniques of the harp |
| Type of Illustrations | Drawings |
| Style of Music | Classical |
| Musical Structure | Exerices; Pieces |
| Elements of harmonical Theory | No |
| Introduction | 2 |
| Position of the Harp | 4 |
| Tuning | 3 |
| Elements of Musical Theory | 1 |
| Beginning with 1 finger | |
| Beginning with 2 fingers | |
| Beginning with 3 fingers | |
| Beginning with 4 fingers | 5 |
| Intervals | 6 |
| Chords, 3 fingers | |
| Chords, 4 fingers | |
| Pedals / Levers | 8 |
| Glissando | |
| Harmonics | 11 |
| Scales | |
| Slides | |
| Arpeggios | 7 |
| Trills, Tremolos, Bisbigliandi, Ornaments | 9 |
| Muffled Sounds | 10 |