Trevor Wye Practice Book for the Flute, Book 1 focuses on tone-building, developing different tone colors, breath, pitch control and flexibility. This series of practice books by Trevor Wye is an invaluable addition to study for all flutists. Each book in the Music Sales America concentrates on a different technical problem covering all aspects of playing the instrument. This series serves as a step-by-step guide with plenty of helpful exercises for all registers. Order Now to start building your tone skills! 50 pages.