James Burke’s “New Directions in Tonguing” is subtitled “The Art of Double and Triple Tonguing.” It contains a series of exercises for the development of a solid double tongue using the “da-ga da-ga” syllables which promote playing with the fullest sound and length possible. Triple tonguing is approached using the “da-ga-da” (also known as the “T-K-T”) technique which is advocated by the world’s top pedagogues.

Exercises begin with repeated pitches and gradually advance to changing pitches (s...