Henri Vachey compiles a unique theory guide to aid all instrumentalists in sight singing. The 50 Exercises in Vachey 's study guide contribute to a series of preparatory books for sight singing, incorporating variations in time signatures, key signatures, intervals, rhythm and articulation, amongst other aspects. For all aspiring musicians, Vachey 's 50 Singing Exercises will improve the student's sight singing.
| Arrangement | All Instruments |
| Genres | Classical, Post-1900 |
| Media | Sheet Music |
| Publisher | Alphonse Leduc |
| Contributors | Vachey, Henri (Composer) |
| Language | French |
| ISBN | 9790046239922 |
| ISMN | M046239922 |