| Saar | Louis V.F. | Opus 39 in E (1904) |  |
| Sabin | Nigel | Points of Departure II (2011) |  |
| Sachsen-Weimar | Anna Amalia von | Piano Quartet |  |
| Saint-George | Joseph B.de | Suite Rose Thistle and Shamrock |  |
| Saint-Lubin | Léon de | Opus 48 in d (1844) |  |
| Saint-Saens | Camille | Early quartet in Es (youth) (1850-1853) |  |
| Saint-Saens | Camille | Opus 41 in Bes |  |
| Saint-Saens | Camille | Opus 108 Baccarole (arr. composer 1909) |  |
| Saint-Saens | Camille | Caprice-Valse Opus 76 |  |
| Saint-Saëns | Camille | Dans Macabre.Arrangiert von Michael Rot (2016). |  |
| Salbert | Dieter | Quartetto Liberale (Violine, Bratsche, Cello, Klavier) |  |
| Salmanov | Vadim N. | Quartet (1947) |  |
| Salmenhaara | Erkki O. | Poema |  |
| Salter | Timothy | Piano Quartet (2006) |  |
| Samuel | Rhian | Pianoquartet Light and Water (2003) |  |
| Samuel | Virginia E. | Pianoquartet |  |
| Sandre | Gustave | Opus 15 in Es |  |
| Sandre | Gustave | Quartet pour violon, alto, violoncello et piano, Opus 15 |  |
| Santoni | Stefano | Indecision |  |
| Santos | Joly Braga | See Braga Santos |  |
| Santos | Luigi Tasso | Piano Quartet no. 1 Opus 34a |  |
| Sardon | Simon | Janus Variations |  |
| Saunders Herbison | Jeraldine | Melancholy on the Adfvent of Depa (1980) Opus !8 no 3 |  |
| Saussine | Henry de | Quatuor avec piano |  |
| Sawyer | Eric | Pianoquartet (1997) |  |
| Saxe-Weimar-Eisenach | Anna Amalia, Duchess of | Quartet for clarinet (or violin),viola, cello and pianoforte |  |
| Sbordoni | Alessandro | Eros: Daedalus per violine, viola, violoncello e oianoforte (1978) |  |
| Scarborough | Brian | Piano Quartet no 1 in E Minor (2011 Boston Conservatory) |  |
| Schaathun | Asbjorn | Replicas with Gilded Framens (2006) for piano quartet |  |
| Schadewitz | Carl | Quartet |  |
| Schaeffer | Buguslav J. | Quartett für Klavier, Violine,Viola und Violoncello (1997) |  |
| Scharwenka | F. Xaver | Opus 37 in F (1876) |  |
| Scheinpflug | Paul | Opus 4 in E (1903) |  |
| Scheunemann | Max | Opus 23 in E (1923) |  |
| Schick | Paul | Kenosis : For Violin, Viola, Cello and Piano. |  |
| Schidlowsky | Leon | Piano Quartet (1988) |  |
| Schikele | Peter | Music for Orcas Island |  |
| Schlegel | Leander | Opus 14 in C (1909) |  |
| Schlösser (Schloesser) | Adolf (Adolphe) | Opus 105 in As (1865) |  |
| Schmeidler | Carl | Concert Romanze in g-minor Opus 13 (1899) mit Bratsche oder zweite violin, und Harfe oder klavier |  |
| Schmidt Pedersen | Ole | Piano Quartet Opus 17 Divertissemento (1957) |  |
| Schmidt-Kowalski | Thomas | Klavier Quartett in E-Dur Opus 63 (1997) |  |
| Schmitt | Aloys | Quartet |  |
| Schmitt | Florent | Opus 96 Les hasards (1939-1944) |  |
| Schmitt | Florent | Opus 97 A tour d'anches |  |
| Schmitt | Meinrad | Klavierquartett (1982) |  |
| Schmitt | Florent | À tour d’anches, opus 97 |  |
| Schmotova | Marina | Quartet for violin, alto, cello and piano (1984) |  |
| Schneider | J. Chr.Friedrich | Opus 24 in Es |  |
| Schneider | J. Chr.Friedrich | Opus 34 in F |  |
| Schneider | J. Chr. Friedrich | Opus 36 in c (1820) |  |
| Schneider | David | Ballade for pianoquartet (2006) |  |
| Schnittke (Shnitke) | Alfred G. | Quartet (1989) |  |
| Schnittke (Shnitke) | Alfred G. | Scherzo sur des equisses de Mahler (1955) |  |
| Schoeller | Philippe | Madrigal |  |
| Schoemaker | Maurice | Quartet (1945) |  |
| Schoenberg | Arnold | Piano Quartet in g |  |
| Schoenberg | Arnold | Verklaerte Nacht (arr. Mozart piano Quartet - 2009) |  |
| Schoenfield | Paul | Caroline Reveille |  |
| Scholtz | Bernard | Opus 79 in f (1899) |  |
| Schoorel | Pari A. | Piano Quartet |  |
| Schreier | Anno | Klavierquartett (2001) |  |
| Schubert | Franz P. | Opus Posth.Adagio und Rondo in F(D 487;1816) |  |
| Schubert | Franz P. | Opus 166 A (after the Octet) |  |
| Schubert | Franz P. | Landler |  |
| Schubert | Franz P. | Variations on a Waltz by Antonio Diabelli |  |
| Schubert | Franz P. | Ecosaisse |  |
| Schubert, rev..A.von Toszeghi | Franz P. | Intermezzo from Rosamunde |  |
| Schuberth | Ludwig (Louis) | Opus 23 in Bes (1843) |  |
| Schuberth | Ludwig (Louis) | Opus 32 (1844) |  |
| Schulenburg | Hermann | Puszta-Märchen |  |
| Schuller | Gunther | On light Wings (1984) |  |
| Schulthesius | Johann P. | Opus 3,nr 1 in Es |  |
| Schulthesius | Johann P. | Quartet 3,nr 2 in Es |  |
| Schulthesius | Johann P. | 8 Variazioni facili opus 4 (1987). Music is lost. |  |
| Schulthesius | Johann P. | Allegretto et 12 variationes, Opus 5 (1792) |  |
| Schulthesius | Johann P. | 12 Novelles Variations sur l'air de Marlborough, Opus 11. Music is lost |  |
| Schultz | Wolfgang Andreas | Landschaft mit der Verstoessung der Hagar, Klavierquartett (2011-2012) |  |
| Schumann | Georg A. | Opus 29 in f (1901) |  |
| Schumann | Robert | Opus 47 in Es (1845) |  |
| Schumann | Robert | Op.Posth.in c (1829) |  |
| Schumann | Robert | Quartett in Bes majeur, 1831-1832, inacheve |  |
| Schumann | Robert | Abendlied (Opus 85 no. 12) for piano quartet arr. by James M. Guthrie |  |
| Schurmann | Gerard | Quartet no.1 (1986) |  |
| Schurmann | Gerard | Quartet no.2 (1988) |  |
| Schütt (Schuett) | Eduard | Opus 11 in F |  |
| Schuyt | Nico | Razernijen voor vier (Furies for four) (1975) |  |
| Schwabe | Jonathan Clarke | Pianoquartet no. 1 |  |
| Schwanter | Joseph C. | Shadows for piano quartet, Consortium V (1973) |  |
| Schwarz | Elliot | Dream Music with variation (1983) |  |
| Schwendinger | Laura E. | Song for Andrew (2008) |  |
| Scott | Cyril M. | Opus 16 in E Minor (1899) |  |
| Scott | David R. | Test Patterns (1997) |  |
| Scott Tresham | C. | Lyveden for piano Quartet (1999) |  |
| Sculpthorne | Peter | Landscape II for string trio and amplified piano |  |
| Sculthorpe | Peter | From Nourlangie |  |
| Searle | Oliver | Chiasmus (2001) |  |
| Seeger | Ruth | See: Crawford Seeger |  |
| Seidelmann | Axel | Evocation fur Klavierquartett (2001) |  |
| Seitz | Friedrich | Opus 35 in G (1909) |  |
| Seloujanov | Maxim | Irrwische fuer Klavierquartett (2001) |  |
| Senfter | Johanna | Piano Quartet in E minor Opus 11 |  |
| Senfter | Johanna | Piano Quartet in D minor Opus 112 |  |
| Sérieyx | Auguste | Quartet (1930) |  |
| Sermila | Jarmo | Vinohrady (1992) |  |
| Sessler | Erik | Piano Quartet (2004) |  |
| Seter | Mordechai | Piano Quartet no. 2 (1982) |  |
| Seter | Mordechai | Piano Quartet No. 1 (1973/1981) |  |
| Sewell | L. Stephen | Suite for violine, viola, cello and piano (2008) |  |
| Seyffardt | Ernst H. | Opus 10 in c (1885) |  |
| Seymer | William | Tre Valsetter, arr. for piano quartet byYngve Skold |  |
| Shahrimayan | Jirayr | Piano Quartet (2005) |  |
| Shand | Patrick | PQ (2018) |  |
| Sharlat | Yevgenity | Piano Quartet (2007) |  |
| Shatin | Judith | Run (2002) |  |
| Shavaneau | Emanuel | Balbec Stories (2015-2018) |  |
| Shedlock | Joh South | Piano Quartet in A minor |  |
| Sheeran | Ed | Perfect, arranged by Stefano Pagotto |  |
| Sherr | Lawrence (Larry) | The fiber Sculptures of a celestian vision (1991) |  |
| Shirinsky | Vasily P. | Quartet (1964) |  |
| Shmotova | Marina | Piano Quartet (1984) |  |
| Shreffler | Ted | Prelude for Piano Quartet |  |
| Siboni | Erik A.W. | Opus 10 in Bes (1865) |  |
| Siegmeister | Elie | Piano Quartet |  |
| Sierra | Roberto | Kandinsky (2004) |  |
| Sierra | Roberto | Fuego de Angel |  |
| Sigal | Rodrigo | Quartet, for violin, viola, violoncello and piano |  |
| Sigesmund | Darren | Kensington Ceilidh (Prince Edward Island). |  |
| Sigtryggsson | Eiríkur Árni | Piano Quartet no.I (2013) |  |
| Silesu | Stanislao (Lao) | Madrigal |  |
| Sillamy | Jean-Claude | Quatuor avec piano (1978) |  |
| Silva | Patricio da | Piano Quartet (2004) |  |
| Silva | Oscar da | Piano Quartet in D major |  |
| Silva | Oscar da | Fantasia volubilis for piano quartet |  |
| Simon & Garfunkel | Art & Paul | Bridge Over Troubled Water for Piano Quartet, arranged by James M. Guthrie |  |
| Simons | Marijn | Piano Quartet opus 41 (2007) |  |
| Simonsen | Rudolph H. | Quartet (1908) |  |
| Sinding | Christian | Klavierquartet (1882) |  |
| Singer | J. Malcolm | The Grammar of Hope (1989) |  |
| Siwinsky | Jarovslav | Piano Quartet (1998) |  |
| Sjöberg | Carl | Pianoquartet |  |
| Sjöberg | Svante L. | Quartet |  |
| Skalkottas | Nikos | Scherzo (1936-1940) |  |
| Skempton | Howard | La gora di molino (2011) (second violin or viola) |  |
| Skweres | Tomasz | Grenzgänge (Border Crossings) (2016) (for piano quartet) |  |
| Slater | Angela Elizabeth | Spinning Colours | Faded Time (2021) |  |
| Slean | Sarah | Johnny Pippy of Pouch Cove, on a bicycle at Dawn. (New Foundland) |  |
| Sleeper | Thomas M. | Dunsmuir Quartet (1991) |  |
| Slimácek | Jan | Piano Quartet (1967) |  |
| Smalley | Roger | Pianoquartet Crepuscule (1998-1999) |  |
| Smalley | Roger | Crepuscule (1998/9) |  |
| Smart | Gary | Piano Quartet (2009) |  |
| Smet | Raoul de | Ulrike, een antieke tragedie (2004) |  |
| Smith | Gail Esther | La Fourest |  |
| Smith (also: Meadows White) | Alice M. | Piano Quartet no 1 in B-flat (1961) |  |
| Smith (also: Meadows White) | Alice M. | Quartet no 2 in E flat (1862) |  |
| Smith (also: Meadows White) | Alice M. | Quartet no 3 in D major (1864) |  |
| Smith (also: Meadows White) | Alice M. | Quartet no 4 in g minor |  |
| Socolovic | Ana | Splendor Sine Occasu (Brtitish Columbia) |  |
| Soderlind (Söderlind) | Ragnar | Quartett (2010) |  |
| Sodermann (Södermann) | August | Opus 14 in e (1856) |  |
| Soergel | Friedrich .W. | Piano Quartet Opus 20 (ca.1825) |  |
| Soeter | Nicoline | Liquids (2011) |  |
| Sokolovic | Ana | Splendor Sine Occasu (Brtitish Columbia) |  |
| Solbiati | Alessandro | Klimt 2007 |  |
| Sollima | Giovanni | Quartetfiles per violine, viola, violoncello e pianoforte (2005) |  |
| Solomon (Hill) | Mirrie | Piano Quartet |  |
| Sommer | Hans | Klavierquartett g-Moll |  |
| Soproni | Jozsef | Late summer Capriccios |  |
| Soresina | Alberto | Ciaccona a Variazione de Quartetto |  |
| Sormann | Alfred R.G. | Trio |  |
| Soulage | Marcelle F.H. | Quartet |  |
| Sourek | Otto | Klavierquartett B 162 |  |
| Southgate | Sir William | A commision of Creative New Zealand |  |
| Spartlan | Lewis | Streaming - Quartet For Piano and Strings : For Piano, Violin, Viola and Cello (2004). |  |
| Speaght | Joseph | Quartet in C (1900) |  |
| Speaight | Joseph | Quartet in G Minor |  |
| Spedding | Frank | Piano Quartet In One Movement Opus 1 (1951) |  |
| Sperger | Johannes Matthias | Six piano quartets |  |
| Spindler | Fritz S. | Opus 108 in C (1860) |  |
| Spinei | Christina | Mahler Remixed (2011) |  |
| Spiro | Robert D. | Piano Quartet |  |
| Sponer | Alfred von | Opus 2 in F (c.1895) |  |
| Spratlan | Lewis | Streaming |  |
| Stadtfeld | Alexandre | Quatuor pour violon, alto, violoncelle et piano (1847) |  |
| Staebler | Gerhard | Around for piano and stringtrio (2008) |  |
| Stafford | Jan | They Who Hunger (1989) |  |
| Stähle | Hugo | Opus 1 in A (c.1848) |  |
| Stanford | Charles V. | Opus 15 in F major (1879) |  |
| Stanford | Charles V. | Opus 133 (1912) |  |
| Stanhope | David | Endpiece (1999) |  |
| Stanhope | Paul | My song is love unknown (2000) |  |
| Stankovych | Tatiana | Musique d'ensemble |  |
| Starer | Robert | Klavierquartett in einem Satz |  |
| Stark | Christopher | Piano Quartet : For Violin, Viola, Cello and Piano (2014). |  |
| Stauning | Martin | Schattenkinder (2016) |  |
| Steen | Pade | Lamento (1990) |  |
| Steffens | Walter | Opus 33 Ming I/Verwundung des Hellen, Klavierquartett nach Gedichten von Elfriede Szpetecki und Nelly Sachs |  |
| Steggall | Reginald | Air and Variations in B-flat |  |
| Steibelt | Daniel | Quartet for piano and strings |  |
| Steibelt | Daniel | Piano Quartet in A major, Op.51 (1812?) |  |
| Steinhardt | Victor | Quartet for piano and strings |  |
| Steinmann | James D.P. | Foursight (2004) |  |
| Stelzenbach | Susanne | irisieren, kleine eiszeit, wellenstorung (2008) |  |
| Stenger | Alfred | Klavierquartett (1999) |  |
| Stenhammar | Wilhelm | Allegro brillante in Es (1891) |  |
| Stephen | David | Piano Quartet in c (Quartette Petite) |  |
| Stephen Sewell | L. | See: Sewell |  |
| Stephens | Charles Edward | Quartet Opus 2 in b (1853) |  |
| Stephens | Charles Edward | Piano Quartet Opus 2 (1853) |  |
| Steptoe | Roger | Quatre romances sans paroles (2001) |  |
| Sterkel | Johann F.X. | Quartet in Bes(1804) |  |
| Sterling | Lindsey | Carol of the bells. |  |
| Sternfeld-Dunn | Aleksander | Metamorploses on a theme (2001) |  |
| Sternfeld-Dunn | Aleksander | Pedal Point Sketches (2006) |  |
| Steven | Stucky | Piano Quartet (2005) |  |
| Stevenson | Ronald | Fantasy Quartet: Alma Alba (1985) |  |
| Stiehl | Heinrich F.D. | Opus 40 in F (1860) |  |
| Stiehl | Heinrich F.D. | Opus 172 in D (1886) |  |
| Štochl, | Ondřej | Piano Quartet ...the Seagull Has the Last Laugh...(2022) |  |
| Stöhr | Richard | Opus 63 in d (1920) |  |
| Stojanovic | Petar L. | Opus 15 in D (1913) |  |
| Stoker | Richard | Piano Variations Op.45 |  |
| Stolk | Adria | Luminous, tenebrous (2011) |  |
| Stoll | David | Pianoquartet in A |  |
| Stoll | Marianne | Opus 34 |  |
| Stolz | Nolan R. | Catharsis II, pianoquartet no.2 (2009) |  |
| Stolz | Nolan R. | Kaena Point (2008) |  |
| Stolz | Josef | Quartett fuer Klavier,Violine,Viola and Violoncello (1993) |  |
| Stoney | William S. | Piano Quartet in D (1951) |  |
| Straeten | Geert van der | Caleidoscoop opus 14 (1998) |  |
| Strauss | Richard | Opus 13 in c (1884) |  |
| Strauss | Richard | Ständchen, Festmarsch, Arabischer Tanz, Liebesliedchen und Concertante - für Klavier und Streichtrio |  |
| Strauss | Wolfgang | Klavierquartett Opus 75 (1986) |  |
| Strauss junior | Johann | Die Fledermaus Waltz, arranged by Julia Samarska |  |
| Strauss, arr. A.von Toszeghi | Johann | Opus 257 Perpetuum mobile |  |
| Streicher | Theodor | see Birnov |  |
| Strens | Jules | Quatuor Opus 55 (1954) |  |
| Strommen | Carl | Sundance |  |
| Struebing | Uwe | Essay sur Beethoven fuer Violine, Viola, Violoncello und Klavier, Opus 58 (2001) |  |
| Stucky | Steven | Pianoquartet Rain Shadow (2005) |  |
| Stuhec | Igor | L'art pour l'art (2004) |  |
| Suchon | Eugen | Klavirne kvarteto Opus 6 (1933) |  |
| Suder | Joseph | Quartet in b (1936) |  |
| Sugar | Reszö | Quartet for piano and strings |  |
| Suijkerbuijk | J.M. | La Donna nello Specchio (opus 103), 2011 |  |
| Suk | Josef | Opus 1 in a (1891) |  |
| Sulzer | Balduin | Intermazzo a 4, Opus 370 (2011) |  |
| Sulzer | Balduin | Quatricinium instrumentale Opus 389 |  |
| Sumimoto | Jyunji | Vyakarana for piano and string trio (1966) |  |
| Summers | J.L. | Piano Quartet (1865) |  |
| Sunabacka | Karen | Fishing together |  |
| Surinach | Carlos | Pianoquartet (1942) |  |
| Swafford | Jan | They Who Hunger (1989) |  |
| Swain | Freda (Mary) | The Sea (Piano Quartet, 1938) |  |
| Swepstone | Edith | Piano Quartet in A Minor (ca.1912) |  |
| Swift | Taylor Alyson | You belongs with me, arranged by Caroline McCaskey. |  |
| Szabo | Ferenc | Air (1953) |  |