- So quanto a te dispiace by Mozart, Wolfgang Amadeus
- So sei’s! Für seinen feigen Wankelmut by Wagner, Richard
- So sei’s! Für seinen feigen Wankelmut by Wagner, Richard
- So stehn wir, ich und meine Weide by Daumer, Georg Friedrich
- So stehn wir, ich und meine Weide by Brahms, Johannes
- So Sweet Is Thy Discourse by Campion, Thomas
- So Sweet Is Thy Discourse by Campion, Thomas
- So wahr die Sonne scheinet by Wolf, Hugo
- So wahr die Sonne scheinet by Schumann, Robert Alexander
- So wahr die Sonne scheinet by Schumann, Robert Alexander
- So wahr die Sonne scheinet by Becker, Reinhold
- So wahr die Sonne scheinet by Rückert, Friedrich
- So willst du des Armen by Tieck, Johann Ludwig
- So willst du des Armen by Brahms, Johannes
- So wollt ich ganz zernichtet sein by Hofmannsthal, Hugo von
- So wollt ich ganz zernichtet sein by Martin, Frank
- Soave sia il vento by Mozart, Wolfgang Amadeus
- Soave sia il vento by da Ponte, Lorenzo
- Sobejano y Ayala, José
- Sobre Baza estaba el Rey by Rodrigo, Joaquín
- Sobre Baza estaba el Rey by Anonymous Spanish Poets
- Soccorretemi per pietà by Anonymous Italian Poets
- Soccorretemi per pietà by Anonymous Italian Composers
- Soffre il mio cor con pace by Mozart, Wolfgang Amadeus
- Soffre il mio cor con pace by Cigna-Santi, Vittorio Amedeo
- Soggetto al mio volere by Stampiglia, Silvio
- Soggetto al mio volere by Händel, Georg Friedrich
- Sogno by Stecchetti, Lorenzo
- Sogno by Tosti, Francesco Paolo
- Sogno d’infanzia by Anonymous Italian Poets
- Sogno d’or by Marsili, Carlo
- Sogno d’infanzia by Bellini, Vincenzo
- Sogno d’or by Puccini, Giacomo
- Sografi, Antonio Simone
- Soir by Poldowski, née Wieniawski, Irena Regina
- Soir by Fauré, Gabriel
- Soir by Samain, Albert Victor
- Soir d’été by Flégier, Ange
- Soir d’hiver by Boulanger, Nadia
- Soir d’hiver by Boulanger, Nadia
- Soir païen by Lebey, André
- Soir païen by Hüe, Georges
- Soirée en mer by Saint-Saëns, Charles Camille
- Soirée en mer by Hugo, Victor
- Soirées d’automne à l’Infrascata
- Sois bénie, ô magie by Gramont, Louis Ferdinand de
- Sois bénie, ô magie by Massenet, Jules
- Sois bénie, ô magie by Blau, Édouard
- Sois heureuse by Widor, Charles-Marie
- Sois heureuse, ô ma douce amie by Hugo, Victor
- Sois immobile by Étienne de Jouy, Victor-Joseph
- Sois immobile by Rossini, Gioachino
- Sois immobile by Bis, Hippolyte
- Sokolov, Nikolay Aleksandrovich
- Sokrates und Alcibiades by Hölderlin, Friedrich
- Sokrates und Alcibiades by Britten, Benjamin
- Sol che un istante io miri by Kuhlau, Daniel Friedrich Rudolph
- Sol che un istante io miri by Metastasio, Pietro
- Sol da te mio dolce amore by Vivaldi, Antonio
- Sol da te mio dolce amore by Braccioli, Grazio
- Sol la brama di vendetta by Zeno, Apostolo
- Sol la brama di vendetta by Händel, Georg Friedrich
- Sol nascente by Mozart, Wolfgang Amadeus
- Sol nascente by Anonymous Italian Poets
- Sol può dir come si trova by Metastasio, Pietro
- Sol può dir come si trova by Varesco, Giambattista
- Sola, perduta, abbandonata! by Illica, Luigi
- Sola, perduta, abbandonata! by Oliva, Domenico
- Sola, perduta, abbandonata! by Praga, Marco
- Sola, perduta, abbandonata! by Giacosa, Giuseppe
- Sola, perduta, abbandonata! by Puccini, Giacomo
- Solche hergelaufne Laffen by Stephanie der Jüngere, Johann Gottlieb
- Solche hergelaufne Laffen by Mozart, Wolfgang Amadeus
- Soldatenbraut by Schumann, Robert Alexander
- Sole e amore by Puccini, Giacomo
- Sole e amore by Anonymous Italian Poets
- Soleil, fuis de ces lieux by Rameau, Jean-Philippe
- Soleil, fuis de ces lieux by Autreau, Jacques
- Soleils couchants by Verlaine, Paul
- Soleils couchants by Canteloube, Joseph
- Soleils couchants by Bordes, Charles
- Soleils couchants by Boulanger, Nadia
- Soleils couchants by Casella, Alfredo
- Soleils couchants by Vierne, Louis
- Solera, Temistocle
- Solitario bosco ombroso by Cherubini, Luigi
- Solitario bosco ombroso by Rolli, Paolo Antonio
- Solitude by Viardot-García, Pauline
- Solitude by Turquety, Edouard
- Soll sich der Mond nicht heller scheinen by Anonymous German Poets
- Soll sich der Mond nicht heller scheinen by Brahms, Johannes
- Sólo tú by Jiménez, Juan Ramón
- Sólo tú by Palomo, Lorenzo
- Solo un pianto con te versare by Hoffmann, François-Benoît
- Solo un pianto con te versare by Cherubini, Luigi
- Solsona, Conrado
- Solvejg’s Song by Westbrook, Arthur
- Solvejg’s Song by Grieg, Edvard
- Solvejgs Lied by Ibsen, Heinrik
- Solvejgs Lied by Grieg, Edvard