Work: What Child is This, A Christmas Cantata: 6. Gloria Deo
Composer: John Leavitt (1956–)
Work: 6 Pieces Musicales d'Etude
Composer: Raymond Gallois-Montbrun (1918–1994)
Work: Sechs Lieder: Stempellied, Op. 28, No. 6
Composer: Hanns Eisler (1898–1962)
Work: Thule the period of cosmographie
Composer: Thomas Weelkes (1576–1623)
Work: Troisième Concert Royal in A Major: 6. Muzette. Naïvement
Composer: François Couperin (1668–1733)
Work: 6 Moments musicaux dédiés à mon fils, Op. 44: 6. Les Adieux
Composer: György Kurtág (1926–)
Work: 6 Moments musicaux dédiés à mon fils, Op. 44: 1. Invocatio
Work: 6 Lieder, Op 49: 5. Gute Nacht
Composer: Robert Franz (1815–1892)
Work: Six Preludes
Composer: Robert Starer (1924–2001)
Work: 6 Pièces humoristiques, Op. 87: 5. Consolation
Composer: Cécile Chaminade (1857–1944)
Work: 6 Cembalo Sonatas
Composer: Lou Harrison (1917–2003)
Work: String Quartet in B-flat Major, Op. 130: 6. Finale: Allegro
Composer: Ludwig van Beethoven (1770–1827)
Work: Agrippina, HWV 6: Aria (unspecified)
Composer: George Frideric Handel (1685–1759)
Work: Six Miniatures
Composer: Johan Franco (1908–1988)
Work: America Concerto
Composer: Filip Pavlov (1949–)
Work: String Quartet No. 6 in B-flat Major, Op. 18, No. 6: 2. Adagio ma non troppo
Work: String Quartet No. 6 in B-flat Major, Op. 18, No. 6: 1. Allegro con brio
Work: 6 Little Piano Pieces, Op. 19: 6. Sehr langsam
Composer: Arnold Schoenberg (1874–1951)
Work: 11 Bagatelles, Op. 119: 6. Bagatelle in G Major. Andante – Allegretto
Work: 6 Bagatelles, Op. 126: 6. Bagatelle in E-flat Major. Presto
Work: 6 Little Piano Pieces, Op. 19: 2. Langsam
Work: 6 Lieder, Op. 68: 6. Lied der Frauen
Composer: Richard Strauss (1864–1949)
Work: 6 Romanze: 6. Brindisi
Composer: Giuseppe Verdi (1813–1901)
Work: Wind Quintet, Op. 6
Composer: Attila Bozay (1939–1999)
Work: Wind Quintet in G Major, Op. 99, No. 6
Composer: Anton Reicha (1770–1836)
Work: Biblical Songs, Op. 99: 6. Hear my prayer, O Lord
Composer: Antonín Dvorák (1841–1904)
Work: Six Profiles, Op. 68
Composer: Ernst Toch (1887–1964)
Work: 6 Pieces for 2 Harpsichords
Composer: Gaspard Le Roux (–1707)
Work: 6 Canciones castellanas:6. Después que te conocí
Composer: Eduardo Toldrá (1895–1962)
Work: Poèmes pour la paix
Composer: Ned Rorem (1923–2022)
Work: Piano Sonata No. 6, "Bells of Dawn"
Composer: Ronn Yedidia (1960–)
Work: Tierkreis: 6. Cancer
Composer: Karlheinz Stockhausen (1928–2007)
Work: Sonata a quattro No. 1 in G Major: 1. Moderato (c. 1804)
Composer: Gioachino Rossini (1792–1868)
Work: 9 Gesänge, Op. 69: 6. Vom Strande
Composer: Johannes Brahms (1833–1897)
Work: 6 Lieder, Op. 57: 6. Wanderlied
Composer: Felix Mendelssohn (1809–1847)
Work: 6 Hölderlin-Fragmente: 5. An eine Stadt
Work: 6 Songs, Op. 8: 6. Molitva (A Prayer)
Composer: Sergei Rachmaninoff (1873–1943)
Work: Les béatitudes: Sixth Beatitude
Composer: César Franck (1822–1890)
Work: Crucifixus
Composer: Antonio Lotti (1667–1740)
Work: Agrippina, HWV 6: Aria of Poppea
Work: Lieder ohne Worte, Op. 62: Lied ohne Worte in G Major (unspecified)
Work: 6 Chants populaires hébraïques, Op. 86: 6. Chant hassidique
Composer: Darius Milhaud (1892–1974)
Work: 6 Chants populaires hébraïques, Op. 86: 1. La séparation
Work: 6 Årstidssånger
Composer: Gunnar Bucht (1927–)
Work: 6 Gedichte aus "Des Knaben Wunderhorn", Op. 9: 4. Knabe und Veilchen
Composer: Erich J. Wolff (1874–1913)
Work: Bolt Suite, Op. 27a: 6. Finale
Composer: Dmitry Shostakovich (1906–1975)
Work: Etudes after Paganini Caprices, Op. 3: Etude No. 2 in E Major. Allegretto
Composer: Robert Schumann (1810–1856)
Work: Etudes after Paganini Caprices, Op. 3: Etude No. 1 in A Minor. Agitato
Work: 6 Lieder, Op. 50: 1. Türkisches Schenkenlied (c. 1838)
Work: 6 Romances, Op. 6: 4. Slyeza drozhit (A tear trembles)
Composer: Pyotr Ilyich Tchaikovsky (1840–1893)
Work: Sarcasmos No. 6
Composer: Modesta Bor (1926–1998)
Work: Six Bagatelles, Op. 44
Composer: Božidar Kunc (1903–1964)
Work: Ricercar sesto (c. 1566)
Composer: Melchior Neusidler (1531–1590)
Work: Six Poems of Marina Tsvetayeva, Op. 143
Work: Six Romances on Texts by English Poets, Op. 62
Work: Six Romances on Texts of Japanese Poets, Op. 21
Work: Piano Sonata in D Major, Op. 25, No. 6
Composer: Muzio Clementi (1752–1832)
Work: Spanish Songs, Op. 100: 4. Ring Dance
Work: Spanish Songs, Op. 100: 2. Little Stars
Work: At the Octoroon Balls: 6. Blue Lights on the Bayou
Composer: Wynton Marsalis (1961–)