- Listenly
- Public Library
- Project Gutenberg
- Operas — Stories, plots, etc.
Operas — Stories, plots, etc. — Audiobooks
The Complete Opera Book
by Gustav Kobbé
The Standard Light Operas, Their Plots and Their Music
by George P. (George Putnam) Upton
Operas Every Child Should Know
by Mary Schell Hoke Bacon
The Valkyries
by E. F. (Edward Frederic) Benson, Richard Wagner
The Standard Operaglass
by pseud. Charles Annesley
Parsifal
by Oliver Huckel, Richard Wagner
Stories from the Operas
by Gladys Davidson
Parsifal: Story and Analysis of Wagner's Great Opera
by H. R. (Hugh Reginald) Haweis
Stars of the Opera
by Mabel Wagnalls
A Book of Operas: Their Histories, Their Plots, and Their Music
by Henry Edward Krehbiel
The Wagnerian Romances
by Gertrude Hall Brownell
Stories of the Wagner Opera
by H. A. (Hélène Adeline) Guerber
The Standard Operas: Their Plots, Their Music, and Their Composers
by George P. (George Putnam) Upton
A Second Book of Operas
by Henry Edward Krehbiel
Opera Stories from Wagner
by Florence Akin
The Wagner Story Book: Firelight Tales of the Great Music Dramas
by William Henry Frost