Volume VII. Pianoforte and Chamber Music.
Introduction by Claude Debussy.
Volume VIII. The Orchestra and Orchestral Music.
Introduction by Dr. Richard Strauss.
Volume IX. The Opera.
Introduction by Alfred Hertz, Conductor, Metropolitan Opera House, New York.
Volume X. The Dance.
Introduction by Anna Pavlowa, of the Imperial Russian Ballet.
Volume XI. Dictionary of Musicians and General Index.
Volume XII. Dictionary of Music and General Index.
Volume XIII. Musical Examples.
Volume XIV. Modern Musical Examples.
THE ART OF MUSIC