A must read for any flute player. A wonderful book for improving sound. Gives a clear explanation on tone, intonation, articulation, harmonics, phrasing, etc., and how they all relate to the interpretation of music, as a whole. I was impressed with the inclusion of musical examples and specific exercises in the book, providing insight into William Bennett's approach to the flute, just as I remember WIBB teaching it. A very well thought out book, that I would highly recommend.