D otzauer"s Violoncello Method, Opus 165 was revolutionary upon publishing, advocating, for example, the novel practice of holding the bow at the frog and not above it. Dotzauer also published a variety of other pedagogical works, most of which are still commonly used today. This method was published with a second cello part both to add interest to the exercises and to introduce ensemble playing. Edited by Johannes Klingenberg, published by Carl Fischer. Volume 2. Difficulty: A3-A4 (Apprentice Rating)