Work: Sis cants intranscendents
Composer: Xavier Turull (1922–2000)
Work: 6 Lieder, Op. 56: 6. Die heiligen drei Könige aus Morgenland
Composer: Richard Strauss (1864–1949)
Work: Sonata for Violin and Harpsichord in E-flat Major, Op. 5, No. 6, G. 30
Composer: Luigi Boccherini (1743–1805)
Work: 6 Deutsche Lieder, Op. 103: 4. Wiegenlied
Composer: Louis Spohr (1784–1859)
Work: 6 Etudes for the Left Hand, Op. 135
Composer: Camille Saint-Saëns (1835–1921)
Work: Detskaya Tetrad (Six Children's Pieces), Op. 69
Composer: Dmitry Shostakovich (1906–1975)
Work: 6 Original Canzonettas, Set 1: The Mermaid's Song, H.XXVIa:25
Composer: Joseph Haydn (1732–1809)
Work: Sonatina No. 6 super Carmen, "Kammerfantasie"
Composer: Ferruccio Busoni (1866–1924)
Work: 6 Lieder, Op. 85: 6. Im Waldeseinsamkeit
Composer: Johannes Brahms (1833–1897)
Work: 6 Épigraphes antiques
Composer: Claude Debussy (1862–1918)
Work: 49 deutsche Volkslieder, WoO 33, Book 6: 36. Es wohnet ein Fiedler
Work: Lieder ohne Worte, Op. 30: 4. Agitato e con fuoco
Composer: Felix Mendelssohn (1809–1847)
Work: 6 Chants populaires hébraïques, Op. 86
Composer: Darius Milhaud (1892–1974)
Work: Sextet for Piano and Winds in B-flat Major, Op. 6
Composer: Gordon Jacob (1895–1984)
Work: 6 Love Songs, Op. 40: 1. Sweet Blue-eyed Maid
Composer: Edward MacDowell (1861–1908)
Work: Madrigals, Book 6: Moro, lasso, al mio duolo
Composer: Carlo Gesualdo (1561–1613)
Work: 6 Songs, Op. 86: 3. Die Liebende schreibt
Work: When the King went forth to war, Op. 7, No. 6
Composer: Fedor Fedorovich Keneman (1873–1937)
Work: 7 Spanish Songs, Op. 6: 1. Klinge, klinge mein Pandero
Composer: Emil Sjögren (1853–1918)
Work: 6 Fairy Tales, Op. 51
Composer: Nikolay Medtner (1880–1951)
Work: Deuxiéme livre de pieces de clavecin, 6e ordre: 2. Les langueurs-tendres
Composer: François Couperin (1668–1733)
Work: Synchronisms No. 6 for Piano and Electronic Sounds
Composer: Mario Davidovsky (1934–2019)
Work: Suite No. 6 for Solo Cello in D Major, BWV 1012: Courante (c. 1720)
Composer: Johann Sebastian Bach (1685–1750)
Work: 6 digte, Op. 4: 5. Das alte Lied
Composer: Edvard Grieg (1843–1907)
Work: Symphony No. 6, "Sinfonia semplice"
Composer: Carl Nielsen (1865–1931)
Work: 6 Phantasiestücke, Op. 52: 4. Die Jongleurin (La jongleuse)
Composer: Moritz Moszkowski (1854–1925)
Work: Piano Sonata No. 6 in A Major, Op. 82
Composer: Sergey Prokofiev (1891–1953)
Work: Lieder ohne Worte, Op. 30: 3. Adagio non troppo
Work: Mikrokosmos, BB 105, Vol. 6: Dance in Bulgarian Rhythm (unspecified)
Composer: Béla Bartók (1881–1945)
Work: Cello Sonata in B flat major, Op. 14, No. 6, RV 46
Composer: Antonio Vivaldi (1678–1741)
Arranger: Luigi Dallapiccola (1904–1975)
Work: Romancer (aeldre og nyere), Op. 39: 3. I liden højt deroppe
Work: 6 Poemas arcaicos, Op. 35: 5. Desciende el valle
Composer: Manuel Ponce (1882–1948)
Work: 6 Gesänge, Op. 9: 2. Wasserfahrt (c. 1860)
Composer: Robert Franz (1815–1892)
Work: 6 Romances, Op. 63: 5. Uzh gasli v komnatakh ogni (The fires in the rooms were already out)
Composer: Pyotr Ilyich Tchaikovsky (1840–1893)
Work: Grandes études de Paganini, S. 141: Étude No. 6 in A Minor
Composer: Franz Liszt (1811–1886)
Work: Mélodies persanes: Tournoiement, Op. 26, No. 6
Work: 12 Romances, Op. 14: 6. Tebya tak lyubyat vse (How everyone loves you)
Composer: Sergei Rachmaninoff (1873–1943)
Work: Escenas románticas: 6. Epílogo (c. 1903 - 1904)
Composer: Enrique Granados (1867–1916)
Work: Symphony No. 6 in B Minor, Op. 74, "Pathétique": 4. Andante
Work: 6 Poèmes de Paul Éluard: 5. On ne peut me connaitre
Composer: Georges Auric (1899–1983)
Work: 6 Dances: 6. Et-Araj (c. 1925)
Composer: Komitas Vardapet (1869–1935)
Work: The Granite State Suite, Op. 26: 6. In the White Mountains
Composer: John Warthen Struble (1952–)
Work: 7 Lieder, Op. 95: 6. Mädchenlied
Work: O magnum mysterium...Quem vidistis pastores
Composer: Giovanni Pierluigi de Palestrina (1525–1594)
Work: Má vlast: 6. Blaník
Composer: Bedrich Smetana (1824–1884)
Work: Six Children's Pieces
Composer: Alexandre Tansman (1897–1986)
Work: 3 Piezas, Op. 6: 3. Criolla
Composer: Alberto Ginastera (1916–1983)
Work: March No. 6, with ‘Here’s to Good Old Yale’ (c. 1895 - 1896)
Composer: Charles Ives (1874–1954)
Work: 6 Melodie: 4. Povero core
Composer: Ottorino Respighi (1879–1936)
Work: 6 Romanze: 3. Ad una stella
Composer: Giuseppe Verdi (1813–1901)
Work: 6 Gedichte von N. Lenau und Requiem, Op. 90: 1. Lied eines Schmiedes
Composer: Robert Schumann (1810–1856)
Work: 6 Songs, Op. 48: 2. Die Liebe des Nächsten (c. 1801 - 1802)
Composer: Ludwig van Beethoven (1770–1827)
Work: Symphony No. 6, Op. 173, "Celestial Gate"
Composer: Alan Hovhaness (1911–2000)
Work: Sonata for Violin and Piano in D Major, Op. 6
Composer: Erich Wolfgang Korngold (1897–1957)
Work: Fantasy for Orchestra, Op. 6
Composer: Theodore Newman (1933–1975)
Work: 6 Partsongs, Op. 18: 3. Venematka (The Boat Journey)
Composer: Jean Sibelius (1865–1957)
Work: 6 Songs, Op. 48: 5. Gottes Macht und Vorsehung
Work: Hosanna to the Son of David
Composer: Thomas Weelkes (1576–1623)
Work: 6 Einfache Lieder, Op. 9: 2. Nachtwanderer