Volume 1:  1923 to 1927 inclusive

• Giovanni Martinelli — Que gelida manina, from La Boheme, by Puccini.
• Beniamino Gigli — Un Di Al Azuro Spazio, from Andrea Chenier, by Giordano.
• Beniamino Gigli, Giuseppe de Luca, Amelita Galli-Curci, Louise Homer — Quartet , from Rigoletto, by Verdi.
• Narrator.
• Claudia Muzio — Addio del passato, from La Traviata, by Verdi.
• Giuseppe de Luca — Di Provenza, from La Traviata, by Verdi.
• Beniamino Gigli — E Lucevan le Stelle, from Tosca, by Puccini.
• Tito Schippa and Mafalda Favero — Cherry Duet, from L'Amico Fritz, by Mascagni.
• Riccardo Stracciari — Largo al Factotum, from The Barber of Seville, by Rossini.
• Antonio Cortis — Recondita Armonia, from Tosca, by Puccini.
• Marcel Journet — Mephistopheles Serenade, from Faust, by Gounod.
• Claudia Muzio — Tacea la Notte, from Il Trovatore, by Verdi.
• Enrico Caruso, Louise Homer, Marcel Journet — Trio, from Samson and Delilah, by Saint-Saëns.
• Antonio Scotti — Cantabile de Scarpia, from Tosca, by Puccini.
• Ann Roselle — In Questa Reggia, from Turandot, by Puccini.
• Enrico Caruso and Giovanni Martinelli — Temple Scene, from Aida, by Verdi.

Volume 2:  1928 to 1932 inclusive

• Lawrence Tibbet — Va Tosca, from Tosca, by Puccini.
• Elisabeth Rethberg — Ritorna Vincitor, from Aida, by Verdi.
• Maria Jeritza — Seguidilla, from Carmen, by Bizet.
• Ezio Pinza — Le Veau d'Or, from Faust, by Gounod.
• Narrator
• Giacomo Lauri-Volpi and Elisabeth Rethberg — Nile Duet, from Aida, by Verdi.
• Tito Schipa — Com E Gentil, from Don Pasquale, by Donizetti.
• John Charles Thomas — Salome! Salome!, from Herodiade, by Massenet.
• Beniamino Gigli — Dei Mie Bollente Spiriti, from La Traviata, by Verdi.
• Elisabeth Rethberg — Dich Teure Halle, from Tannhauser, by Wagner.
• Narrator
• Friedrich Schorr — Wahn Monologue, from Die Meistersinger, by Wagner.
• Ezio Pinza — Vecchia Zimarra, from La Boheme, by Puccini.
• Narrator
• Lili Pons — Caro Nome, from Rigoletto, by Verdi.
• Dino Borgioli — Ella Mi Fu Rapita and Parmi Veder Le Lagrime, from Rigoletto, by Verdi.
• Ezio Pinza — Possenti Numi, from The Magic Flute, by Mozart.
• Ezio Pinza — Qui Sdegno Non S Accende, from The Magic Flute, by Mozart.

Volume 3:  1933 to 1937 inclusive

• Lucrezia Bori — Gavotte, from Manon, by Massenet
• Lawrence Tibbett — Standin' in the Need of Prayer, from The Emperor Jones, by Gruenberg
• Narrator
• Richard Crooks — A Fuyez Douce Image , from Manon, by Massenet
• Lauritz Melchoir — Hymn to Venus , from Tannhauser, by Wagner
• Kirsten Flagstad — Yo-To-Ho , from Die Walküre, by Wagner
• Lauritz Melchior — Forging Song , from Siegfried, by Wagner
• Kirsten Flagstad — Liebestod , from Tristan and Isolde, by Wagner
• Bruna Castagna — My Heart at Thy Sweet Voice , from Samson and Delilah, by Saint-Saëns
• Lawrence Tibbett and Giovanni Martinelli — Si Pel Ciel , from Otello, by Verdi
• Narrator
• Gina Cigna — Casta Diva, from Norma, by Bellini
• Lili Pons — Bel Song , from Lakmé, by Delibes
• Lauritz Melchior — In Fernam Land, from Lohengrin, by Wagner
• Kirsten Flagstad — Komm Hoffnung , from Fidelio, by Beethoven
• Rene Maison — Florestan's Aria , from Fidelio, by Beethoven

Volume 4:  1938 to 1942 inclusive

• Elisabeth Rethberg and Ezio Pinza — La Ci Darem La Mano, from Don Giovanni, by Mozart
• Mafalda Favero and Allesandro Ziliani — Love Duet, from Madame Butterfly, by Puccini
• Galliano Massini and Carlo Tagliabue — Solenne In Quest'Ora, from La Forza del Destino, by Verdi
• Narrator
• Bidu Sayao — Adieu Notre Petite Table, from Manon, by Massenet
• Marjorie Lawrence — Closing Scene from Salomé, from Salomé, by Richard Strauss
• Nino Martini — Questa O Quella, from Rigoletto, by Verdi
• Dusolina Giannini and Beniamino Gigli — Santuzzo-Turiddu Duet, from Cavalleria Rusticana, by Mascagni
• Elisabeth Rethberg and Ezio Pinza — Se A Caso Madama, from The Marriage of Figaro, by Mozart
• Jussi Bjoerling — Di Tu Se Fidele, from A Masked Ball, by Verdi
• Robert Weede — Pari Siamo, from Rigoletto, by Verdi
• Lili Pons — Chacun Le Sait, from Daughter of the Regiment, by Donizetti
• Gladys Swarthout — Habanera, from Carmen, by Bizet
• Lawrence Tibbett — Ah! Figlia Tal Nome Palpita, from Simon Boccanegra, by Verdi
•        (This song is a duet, but the narrator does not identify, or even mention, the soprano.)
• Robert Weede — Toreador Song, from Carmen, by Bizet
• Jan Peerce — La Donna e Mobile, from Rigoletto, by Verdi
• Narrator