Photograph of Wagner from the 1870s; another from 1862
Some of Wagner's writings:
Art and Revolution (1849)
The Artwork of the Future (1849)
Judaism in Music (1850)
Opera and Drama (1850-1)
Parsifal program from 1884 performance at Bayreuth
Autograph manuscript of "Siegrieds Tod" (Götterdämmerung)
Costumes from 1891 French production of Lohengrin
Video of Tristan und Isolde, Act I. Scene 3 ("Isolde's Narrative") begins at 28:35:
Revue wagnérienne (French)
Suite from Lohengrin for piano (1892)
"Fantasie brillante" from Lohengrin for piano (1891)
Emmanuel Chabrier, Souvenirs de Munich (parody on themes from Wagner's Tristan und Isolde)
The New Yorker music critic Alex Ross, wrote an excellent book on Wagnerism, regularly updates his blog with his latest findings.
Links to Worldcat entries except where specified.
Beckett, Lucy. Richard Wagner: Parsifal. Cambridge: Cambridge University Press, 1981.
Chafe, Eric. The Tragic and the Ecstatic: The Musical Revolution of Wagner's “Tristan und Isolde.” Oxford and New York: Oxford University Press, 2005.
Dahlhaus, Carl. Richard Wagner’s Music Dramas, Mary Whittall, trans. Cambridge: Cambridge University Press, 1979.
Deathridge, John. Wagner: Beyond Good and Evil. Berkeley and Los Angeles: University of California Press, 2008.
Ehrhardt, Ingrid and Simon Reynolds, eds. Kingdom of the Soul: Symbolist Art in Germany 1870–1920. Munich, London, and New York: Prestel, 2000.
Goldman, Albert and Evert Sprinchorn, eds. Wagner on Music and Drama, William Ashton Ellis, trans. New York: Da Capo Press, 1988.
Grey, Thomas S. Wagner's Musical Prose: Texts and Contexts. Cambridge and New York: Cambridge University Press, 1995.
Hartford, Robert, ed. Bayreuth: The Early Years. Cambridge and New York: Cambridge University Press, 1980.
Hertz, David Michael. The Tuning of the Word: The Musico-Literary Poetics of the Symbolist Movement. Carbondale and Edwardsville, IL: Southern Illinois University Press, 1987.
Huysmans, J. K. Against the Grain, John Howard, trans. New York: Lieber & Lewis, 1922. Also available on: Google Books; Project Gutenberg
Large, David C. and William Weber, eds. Wagnerism in European Culture and Politics. Ithaca and London: Cornell University Press, 1984.
Millington, Barry. Wagner, rev. ed. Princeton: Princeton University Press, 1992.
Spencer, Stewart and Barry Millington, eds. Selected Letters of Richard Wagner. New York: Norton, 1988.
Wagner, Richard. Judaism in Music and Other Essays, William Ashton Ellis, trans. Lincoln and London: University of Nebraska Press, 1995.
Wagner, Richard. Prose Works, 8 vols, William Ashton Ellis, trans. London: K. Paul, Trench, Trubner, 1892–99. Also available on: IMSLP
Weiner, Marc. Richard Wagner and the Anti-Semitic Imagination. Lincoln and London: University of Nebraska Press, 1995.
14.
Recording 1
Composer: Richard Wagner
Work: Act 1, scene 3, Isolde’s Narrative
Album Title: Tristan und Isolde
Performer: Ligendza, Kleiber, Bayreuth Orchestra
Label: Opera d’Oro
Tracks: Disk 1 Track 5
Recording 2