Work: Duetti per due violini: 6. Bruno (Maderna)
Composer: Luciano Berio (1925–2003)
Work: Charmes: 6. …pour appeler la joie
Composer: Frederic Mompou (1893–1987)
Work: Mazurka, Op. 50, No. 6 ("Junacko")
Composer: Karol Szymanowski (1882–1937)
Work: Seis canciones amarillas
Composer: Noel Lee (1924–2013)
Work: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas": 2. Allegro
Composer: Arcangelo Corelli (1653–1713)
Work: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas": 1. Vivace – Grave. Arcate, sostenuto e come stà
Work: 6 Deutsche Lieder, Op. 103: 3. Sehnsucht
Composer: Louis Spohr (1784–1859)
Work: Song Books: Solo for Voice 34 ("Cheap Imitation No. 6")
Composer: John Cage (1912–1992)
Work: The Cradle Will Rock: Sketch 6
Composer: Marc Blitzstein (1905–1964)
Work: Passacalle in D Major, WeissSW 18.6
Composer: Silvius Leopold Weiss (1687–1750)
Work: Sonata for flute and cello in D Minor, Op. 3, No. 6
Composer: Giacobbe Cervetto (1680–1783)
Work: 6 Romances, Op. 63: 6. Serenada (O ditya, pod okoshkom tvoim)
Composer: Pyotr Ilyich Tchaikovsky (1840–1893)
Work: Suite española, Op. 47: 6. Aragón
Composer: Isaac Albéniz (1860–1909)
Work: 6 Gedichte, Op. 36: 6. Liebesbotschaft
Composer: Robert Schumann (1810–1856)
Work: 6 Gedichte, Op. 36: 5. Dichters Genesung
Work: Maggio in Toscana, Op. 21: 6. La pastorella (c. 1894)
Composer: Ethelbert Nevin (1862–1901)
Work: Bilder aus Osten, Op. 66
Work: Suite populaire espagnole
Composer: Manuel de Falla (1876–1946)
Arranger: Maurice Maréchal (1892–1964)
Work: 2 Morceaux de salon, Op. 6: 1. Romance
Composer: Sergei Rachmaninoff (1873–1943)
Work: Sonata in C Major, H.VI:6 (c. 1775)
Composer: Joseph Haydn (1732–1809)
Work: New and Old, Op. 38: 6. Twelve Upside Down
Composer: Wallingford Riegger (1885–1961)
Work: Fantastic Dance on Hebrew Themes, Op. 6
Composer: Solomon Rosowsky (1878–1962)
Work: Psalmi Davidis poenitentiales: De profundis
Composer: Orlande de Lassus (1532–1594)
Work: Improvisation No. 6 in B-flat Major
Composer: Francis Poulenc (1899–1963)
Work: Gloria, FP 177: 6. Qui sedes ad dexteram Patri
Work: 6 Gesänge, Op. 6: 4. Die Liebe hat gelogen
Composer: Robert Franz (1815–1892)
Work: 6 Pieces for Flute and Piano
Composer: Fikret Amirov (1922–1984)
Work: Hums and Songs of Winnie-the-Pooh, Op. 6
Composer: Oliver Knussen (1952–)
Work: Fantaisie-ballet, Op. 6
Composer: Gabriel Pierné (1863–1937)
Work: Piano Trio in F Major, Op. 6
Composer: Woldemar Bargiel (1828–1897)
Work: Stay Coridon thou swaine
Composer: John Wilbye (1574–1638)
Work: Piano Sonata No. 6 in A Major, Op. 82: 4. Vivace
Composer: Sergey Prokofiev (1891–1953)
Work: December Moods No. 6
Composer: Herbert Inch (1904–1988)
Work: Leyer und Schwerdt, ii: Schwertlied, Op. 42, No. 6
Composer: Carl Maria von Weber (1786–1826)
Work: 6 Pence
Composer: Jackson Berkey (1942–)
Work: 3 Piezas, Op. 6: 1. Cuyana
Composer: Alberto Ginastera (1916–1983)
Work: Vingt regards sur l'Enfant-Jésus: 6. Par lui tout a été fait
Composer: Olivier Messiaen (1908–1992)
Work: Partita No. 3 for Solo Violin in E Major, BWV 1006: 6. Bourrée
Composer: Johann Sebastian Bach (1685–1750)
Work: Epilogi (Epilogue), Op. 6, No. 2
Composer: Toivo Kuula (1883–1918)
Work: Fifteen Characteristic Studies: Etude No. 6
Composer: Lillian Fuchs (1902–1995)
Work: 6 Gesänge, Op. 34: 4. Suleika (c. 1837)
Composer: Felix Mendelssohn (1809–1847)
Work: 6 Gesänge, Op. 47: 5. Der Blumenstrauss
Work: 6 Moments musicaux, D. 780: Moment musical in F Minor (unspecified)
Composer: Franz Schubert (1797–1828)
Work: Idomeneo, K. 366: Act I. Vedrommi intorno
Composer: Wolfgang Amadeus Mozart (1756–1791)
Work: Minuet in A Major, Op. 11, No. 6
Composer: Fernando Sor (1778–1839)
Work: 6 Variations on a Theme of Mozart
Composer: Joaquín Nin-Culmell (1908–2004)
Work: Six Strokes: Allegro molto (Shrapnel)
Composer: Carter Pann (1972–)
Work: Six Strokes: Slowly Rocking (Cradle Song)
Work: Six Strokes: Presto (Pasta to Go)
Work: 6 Moments musicaux, D. 780: Moment musical in A-flat Major (unspecified)
Work: 6 Melodie: 5. Si tu veux
Composer: Ottorino Respighi (1879–1936)
Work: Flute Concerto No. 6 in D Major: 3. Polacca
Composer: Saverio Mercadante (1795–1870)
Work: English Suite No. 6 in D Minor, BWV 811: Gigue (-. 1720)
Work: English Suite No. 6 in D Minor, BWV 811: Sarabande-Double (-. 1720)
Work: Goldberg Variations, BWV 988: 19. Variatio 18. Canone alla Sesta. a 1 Clav.
Work: Lieder ohne Worte, Op. 67: 3. Andante tranquillo
Work: Six Poems by Dorothy Parker
Composer: David Rebhun
Work: 6 Songs, Op. 90: 1. Norden
Composer: Jean Sibelius (1865–1957)
Work: Mass No. 6: Sanctus/ Benedictus
Composer: György Orbán (1947–)
Work: Mass No. 6: Gloria