Work: 6 Songs (unspecified)
Composer: Hugo Wolf (1860–1903)
Work: Dance in Bulgarian Rhythm No. 6, BB 105, No. 153
Composer: Béla Bartók (1881–1945)
Arranger: Elmira Darvarova (1954–)
Work: Three Lost Loves
Composer: David Amram (1930–)
Work: Sonata for Cello and Continuo in D Major, TWV 41:D6 (c. 1728)
Composer: Georg Philipp Telemann (1681–1767)
Work: Auf Flügeln des Gesanges, Op. 34, No. 2 (c. 1925 - 1934)
Composer: Felix Mendelssohn (1809–1847)
Arranger: Jascha Heifetz (1901–1987)
Work: 6 Quartets, Op. 112 (c. 1888 - 1891)
Composer: Johannes Brahms (1833–1897)
Work: Suite of 6 Short Pieces
Composer: Ralph Vaughan Williams (1872–1958)
Work: Die schöne Müllerin, D. 795: 6 Songs (unspecified)
Composer: Franz Schubert (1797–1828)
Work: Variations for 6 Players
Composer: Peter Westergaard (1931–)
Work: 6 Preludes for Bass Koto
Composer: Shin'ichi Yuize (1923–2015)
Work: 6 Short Pieces for Woodwind Quintet
Composer: Jean Berger (1909–2002)
Work: Musical Offering, BWV 1079: Fuga (Ricercata) a 6 voci
Composer: Johann Sebastian Bach (1685–1750)
Arranger: John Lewis (1920–2001)
Work: Études d’exécution transcendante, S. 139: 6 Études (unspecified)
Composer: Franz Liszt (1811–1886)
Work: Elegien, BV 249: 2 Elegies (unspecified)
Composer: Ferruccio Busoni (1866–1924)
Work: Bunte Blätter, Op. 99: 6 Selections (unspecified)
Composer: Robert Schumann (1810–1856)
Work: All-Night Vigil, Op. 37: 6. Bogoroditse Devo
Composer: Sergei Rachmaninoff (1873–1943)
Arranger: Tim Salzman
Work: 6 Pieces for 2 Violins and Cello: 2. Scherzino (c. 1921)
Composer: Paul de Wailly (1854–1933)
Work: 6 Pieces for 2 Violins and Cello: 1. Romance (c. 1921)
Work: Lovesongs: Selection (unspecified)
Composer: Margaret Garwood (1927–2015)
Work: Lovesongs: A wind has blown the rain away
Work: Lovesongs: What a proud dreamhorse
Work: Fantasia in C Major, H. 284 (Wq. 59, No. 6)
Composer: Carl Philipp Emanuel Bach (1714–1788)
Work: Symphony No. 6 in B Minor, Op. 74, "Pathétique": 3. Allegro molto vivace
Composer: Pyotr Ilyich Tchaikovsky (1840–1893)
Arranger: Yuja Wang (1987–)
Work: Premier concert pour la flûte traversière avec la basse chiffrée: 2. Les Tourterelles. Tendrement
Composer: Michel Pignolet de Montéclair (1667–1737)
Work: Study No. 6
Composer: Conlon Nancarrow (1912–1997)
Arranger: Thomas Adès (1971–)
Work: 6 Lieder, Op. 13: 4. Der Mond kommt still gegangen
Composer: Clara Schumann (1819–1896)
Work: 6 Songs, Op. 4
Work: Indianas: 6. Una de dos
Composer: Carlos Guastavino (1912–2000)
Work: 6 Romanzen für Frauenstimmen Vol. I, Op. 69: 5. Meerfey
Work: 6 Lieder von Schubert, S. 375. 5. Der Doppelgänger
Arranger: Franz Liszt (1811–1886)
Work: Sonata for Violin and Piano No. 6 in A Major, Op. 30, No. 1: 2. Adagio molto espressivo
Composer: Ludwig van Beethoven (1770–1827)
Work: Walzer-Gesänge, Op. 6: 2. Klagen ist der Mond gekommen
Composer: Alexander Zemlinsky (1871–1942)
Work: 6 English Folksongs: 4. The Brewer (?. 1935)
Composer: Folk Song
Arranger: Ralph Vaughan Williams (1872–1958)
Work: Romanian Folkdances, BB 68: 4. Dance of Buchum
Work: 6 Miniatures
Composer: Louis Haber (1910–2003)
Work: Gedichte von Eduard Mörike: 6 songs (unspecified)
Work: 6 Pictures: 3. Toccatina
Composer: Arno Babadjanian (1921–1983)
Work: 6 Pictures: 2. Folk song
Work: Concertino for Viola and Strings, Op. 45, No. 6
Composer: Lars-Erik Larsson (1908–1986)
Work: Romance in F Major, Op. 118, No. 5
Arranger: Oscar Strasnoy (1970–)
Work: Symphony in G Minor, Op. 6, No. 6: 1. Allegro
Composer: Johann Christian Bach (1735–1782)
Arranger: Robert D. McCashin
Work: Suite: April 2020: 6. uncertainty
Composer: Brad Mehldau (1970–)
Work: Album pour enfants, Op. 39: 6 Selections (unspecified)
Work: 14 Bagatelles, BB 50: 8 Bagatelles (unspecified)
Work: 6 Selections for harpsichord (unspecified)
Composer: Jean-Philippe Rameau (1683–1764)
Work: In Eleanor's Words: 6. What Can One Woman Do?
Composer: Stacy Garrop (1969–)
Work: 6 Épigraphes antiques: 2. Pour un tombeau sans nom
Composer: Claude Debussy (1862–1918)
Work: Symphonic Adiemus: 6. Kayama
Composer: Karl Jenkins (1944–)
Work: 6 Lieder, Op. 9: 2. Ferne. Andante
Composer: Fanny Mendelssohn (1805–1847)
Work: 6 Bagatelles: 5. Three Forms in Red
Composer: Karim Al-Zand (1970–)
Work: Serenade for Violin, Viola, and Cello in D Major, Op. 8: 6. Marcia. Allegro
Work: 6 Liebeslieder Waltzes (unspecified)
Work: 6 Lieder aus Lotosblätter, Op. 19
Composer: Richard Strauss (1864–1949)
Work: Piano Sonata No. 6 in F Major, Op. 10, No. 2: 3. Presto
Work: 6 Bagatelles
Composer: Mark Brunswick (1902–1971)
Work: 6 Preludes and Fugues, Op. 35: 6. Prelude and Fugue in B-flat Major
Work: Sulla melodia popolare del Cinquecento: 6 Selections (unspecified)
Composer: Anonymous
Composer: Charles Ives (1874–1954)
Work: Sonata for Cello and Continuo No. 6 in A Major, G. 4
Composer: Luigi Boccherini (1743–1805)
Work: 6 Latvian Songs (unspecified)
Composer: Janis Medinš (1890–1966)