Work: 6 Romanze: 6. Deh, pietoso, oh addolorata
Composer: Giuseppe Verdi (1813–1901)
Work: 6 Chants polonais, S. 480: 2. Frühling (Wiosna)
Composer: Frederic Chopin (1810–1849)
Arranger: Franz Liszt (1811–1886)
Work: Symphony No. 6 in F Major, K. 43: 2. Andante
Composer: Wolfgang Amadeus Mozart (1756–1791)
Work: 6 Deutsche Lieder, Op. 103: 1. Sei still mein Herz
Composer: Louis Spohr (1784–1859)
Work: Concerto for 4 Recorders and Continuo in C Minor, Op. 19, No. 6 (c. 1713)
Composer: Johann Christian Schickhardt (–1762)
Work: Concerto Grosso in D Major, Op. 6, No. 1
Composer: Arcangelo Corelli (1653–1713)
Work: Concerto Grosso in F Major, Op. 6, No. 2
Work: 6 Lieder, Op 35: 4. Flieder
Composer: Max Reger (1873–1916)
Work: 6 Lieder, Op. 104: 2. Warnung
Work: Six Songs, Op. 88: 2. De bägge rosorna (The Two Roses)
Composer: Jean Sibelius (1865–1957)
Work: String Quartet No. 6 in F Minor, Op. 80: 4. Finale: Allegro molto
Composer: Felix Mendelssohn (1809–1847)
Work: 6 Duets for 2 Flutes: 4. Duet in F Major, F. 54 (c. 1729 - 1741)
Composer: Wilhelm Friedemann Bach (1710–1784)
Work: 6 Studies in English Folksong: 4. Lento "She Borrowed Some of Her Mother's Gold'
Composer: Ralph Vaughan Williams (1872–1958)
Work: La lugubre gondola, R. 81, No. 1
Composer: Franz Liszt (1811–1886)
Work: 6 Lieder für eine Frauenstimme: 1. Morgentau
Composer: Hugo Wolf (1860–1903)
Work: Concerto Grosso in B Minor, HWV 330 (Op. 6, No. 12): Chorale in E Major
Composer: George Frideric Handel (1685–1759)
Work: Chants de terre et de ciel: 6. Résurrection
Composer: Olivier Messiaen (1908–1992)
Work: Canzon per Sonar a Sei--Count Them--Sei (Instrumental Piece for Six--Eccoli--Six), S. 6
Composer: P.D.Q. Bach (1807–1742)
Work: Six Songs in Folk Style, Op. 1
Composer: Pavel Haas (1899–1944)
Work: Études, premier livre: 1. Désordre
Composer: György Ligeti (1923–2006)
Work: 7 Kompositionen zu Goethes Faust, WWV 15: 6. Gretchen am Spinnrade
Composer: Richard Wagner (1813–1883)
Work: Koto Solo No. 6, "Twilight"
Composer: Fusako Yoshida
Work: Seis canciones populares mexicanas
Composer: Manuel Ponce (1882–1948)
Work: 6 Canciones Castellanas: 6. Mañanita de San Juan
Composer: Jesús Guridi (1886–1961)
Work: Consolation, S. 172
Work: 6 Gedichte von N. Lenau und Requiem, Op. 90: 4. Die Sennin
Composer: Robert Schumann (1810–1856)
Work: Suite No. 6 in F-sharp Minor, HWV 431
Work: 6 Glees: 6. Hail, smiling morn
Composer: Reginald Spofforth (1769–1827)
Work: Concerto à 5 in E Minor, Op. 15, No. 6
Composer: Joseph Bodin de Boismortier (1689–1755)
Work: 6 Gesänge, Op. 7: 2. Parole
Composer: Johannes Brahms (1833–1897)
Work: 6 German Dances, K. 571
Work: Études, premier livre: 6. Automn à Varsovie (Autumn in Warsaw)
Work: 6 Duets, Op. 11: 4. Valse
Composer: Sergei Rachmaninoff (1873–1943)
Work: 7 Romances, Op. 47: 6. Den' li tsarit? (Does the day reign?)
Composer: Pyotr Ilyich Tchaikovsky (1840–1893)
Work: Sonata in A Minor, Op. 6, No. 6 (c. 1712)
Composer: Tomaso Giovanni Albinoni (1671–1751)
Work: Mikrokosmos, Vol. 6: Dance in Bulgarian Rhythm No. 6, BB 105, No. 153
Composer: Béla Bartók (1881–1945)
Work: 6 digte, Op. 25: 1. Spillemænd
Composer: Edvard Grieg (1843–1907)
Work: 6 Songs, Op. 75: 3. Aus Goethes Faust
Composer: Ludwig van Beethoven (1770–1827)
Work: 6 Lieder, Op. 67: 2. Drei Lieder der Ophelia: Guten Morgen, ’s ist Sankt Valentinstag
Composer: Richard Strauss (1864–1949)
Work: Symphony No. 6 in E Minor
Work: Water Music Suite: 6. Allegro deciso
Arranger: Hamilton Harty (1879–1941)
Work: Oriental Serenade, Op. 78, No. 6 (c. 1922)
Composer: Selim Palmgren (1878–1951)
Work: Liederkreis, Op. 39: 6. Schöne Fremde
Work: Songs of the Night
Composer: Benjamin Lees (1924–2010)
Work: Violin Concerto No. 1 in D Major, Op. 6: 1. Allegro maestoso (c. 1817)
Composer: Nicolò Paganini (1782–1840)
Work: 6 Gedichte, Op. 36: 4. An den Sonnenschein
Work: Walzer-Gesänge, Op. 6
Composer: Alexander Zemlinsky (1871–1942)
Work: Piano Pieces, Op. 118: 2. Intermezzo in A Major, Op. 118, No. 2. Andante teneramente
Work: Fiançailles pour rire, FP 101: 6. Fleurs
Composer: Francis Poulenc (1899–1963)
Work: Soirées de Vienne, S. 427: 6. Allegro con strepito
Composer: Franz Schubert (1797–1828)
Work: Rejseminder fra fjeld og fjord, Op. 44: 1. Prolog
Work: Peer Gynt, Op. 23: Dance of the Gnomes, Op. 23, No. 6
Work: Divertimento in E-flat Major, H.II:6 (c. 1757 - 1759)
Composer: Joseph Haydn (1732–1809)
Work: Hungarian Dance No. 6 in D-flat Major
Work: 6 Moments Musicaux, Op. 16: 5. Adagio sostenuto, D-flat major
Work: 6 Songs, Op. 43: 1. The nightingale has a lyre of gold
Composer: Arthur Foote (1853–1937)
Work: The Bee: Berceuse du chat ("Gourkota"), Op. 66, No. 6
Composer: Alexander Grechaninov (1864–1956)
Work: Six Children’s Pieces: Fugue sur un thème russe, Op. 34, No. 6
Composer: Anton Arensky (1861–1906)
Work: 6 Lieder, Op. 71: 4. Schilflied
Work: 6 Gesänge, Op. 36: 1. Auf dem Meere
Composer: Robert Franz (1815–1892)