Vobaron’s 4 Lessons and 17 Studies begins with half-page, simple exercises in quarter notes and half notes. They start out in detached, sclae like patterns with simple tonality. The beginning set of lessons increase in difficulty leading the student to the 17 studies to follow. The etudes ascend rapidly into the upper register and the final lessons are appreciably more difficult in all areas of technique.
The lessons and studies are similar in style with the lessons being slightly more difficult and longer than the studies. You may find Vobaron’s book 34 Etudes for Trombone a bit easier and the stepping stone to the book published here.
You can take a look at a few free pages to the left, then grab an immediate PDF download above.