Some are heavily annotated.
Box 41
The Appreciation of Music
, 5 Volumes
Box 41
Artistic Ideals
Box 41
The Chamber Music of Brahms
, 1933 and 1950
Box 42
Comtemporary Composers
Box 42
The Orchestral Instruments and What They Do
Box 42
From Song to Symphony
Box 42
Music in My Time
Box 42
The Quartets of Beethoven
Box 42
The Romantic Composers
Box 42
Tune In, America
Box 42
Ears to Hear
Box 43
Beethoven and His Forerunners
, 1904 and 1933
Box 43
The Dilemma of American Music
Box 43
From Grieg to Brahms
Box 43
A Neglected Sense in Piano Playing