This Rubank gem represents a compilation of two celebrated clarinet methods, completely revised, re-edited and re-styled for modern studios and classrooms. The wealth of valuable materials, used for clarinet instruction since the late 19th century, was reorganized by Rubank editor Harvey Whistler into a progressive educational format to meet the needs of beginning to intermediate clarinet students. In his edition Whistler also provided:

Additional material to comprehensively cover the low register and crossing the break

Instructional units organized by key as well as topic, culminating with melodic studies incorporating each new idea

Exercises for tone development, particularly in the upper register, incorporated into each unit