I leafed through it once received. I would say, after reflection, for an experienced clarinetist who has time and wants to learn an additional approach to the clarinet. Otherwise, even if I don't test it for now, it seems well designed to me.

quite a technical book for advanced clarinet players: I was nevertheless able to draw some useful advice at my humble level and thus make progress in the altissimo register: it remains a long-term work and this book can help. The method aims to be "rational" but from my point of view it lacks some more "scientific" explanations (notably diagrams to explain the wave in the tube: ok, that can be found on Wikipedia) and a diagram that recalls the key numbers on the clarinet for fingerings (would be good in an appendix).

impeccable. Complies with the order. Packaging is great; Finally, a very informative work, which I recommend.