Brass and Wind Band

(1906) Marching Song [arr. from 2 songs without Words Op. 22]
(1909) Suite No. 1 Op. 28/1
(1911) Suite No. 2 Op. 28/2
(1911) Morris Dance Tunes [arr. by Holst]
(1911) Three Folk Tunes
(1928) Moorside Suite
(1930) Hammersmith Op. 52

Chamber Music

(1893) Theme and Variations for string quartet
(1894) Air and Variations for piano and string quartet
(1894) Short Trio for violin, cello, and piano
(1894) Trio for strings
(1896) Fantasiestucke for oboe and string quartet
(1896) Quintet for piano and wind instruments
(1896) Sextet for oboe, clarinet, bassoon, violin, viola, and cello
(1896) Variations for oboe, clarinet, bassoon, violin, viola, and cello
(1897) Scherzo for string sextet
(1903) Quintet for wind instruments Op. 14
(1906) Bourree [orig. W. C. MacFarren, arr. Holst for piano and strings]
(1906) March [orig. Bernhold Tours, arr. Holst for piano and strings]
(1906) Minuet d'Amour [orig. Frederick Cowen, arr. Holst for piano and strings]
(1906) Seven Scottish Airs [arr. Holst for piano and strings]
(1908) Short Trio for violin, cello, and piano [orig. Edwin Lemare, arr. Holst for piano and strings]
(1916) Phantasy on British Folksongs for string quartet Op. 36 [wthdn, arr. IH for string orchestra]
(1925) Terzetto for flute, oboe, and viola
(1933) Gavotte [discarded from Brook Green Suite, arr. IH for recorder quartet

Choral Ballets

(1926) The Golden Goose Op. 45/1
(1926-7) The Morning of the Year Op. 45/2

Film Music

(1931) The Bells

Hymns

(1905) From Glory to Glory Advancing
(1905) Holy Ghost, Come Down Upon Thy Children
(1905) In the Bleak Mid-winter
(1918) I Vow to Thee, My Country
(1925) God Is Love, His the Care
(1925) I Sought Thee Round About, O Thou My God
(1925) In This World, the Isle Of Dreams
(1925) O Valiant Hearts
(1925) Onward, Christian Soldiers!
(1927) By Weary Stages
(1927) Gird On Thy Sword/Lift Up Your Arms

Incidental Music

(1905) Stratford Revels
(1905) Nabou
(1909) The Vision of Dame Christian Op. 27a
(1909) Stepney Children's Pageant Op. 27b
(1910) The Pageant of London [wind band]
(1920) The Sneezing Charm
(1920) Seven Choruses from the Alcestis of Euripides [unison voices, harp, flute]
(1921) St. Martin's Pageant
(1927) The Coming of Christ
(1930) The Passing of the Essenes [unison male voices]
(1933-4) The Song of Solomon

Piano Solo

(1892) Arpeggio Study
(1901) Deux Pieces
(1906) Country Song [arr from Two Songs Without Words]
(1909-10) Beni Mora Op. 29/1 [arr from orchestral original]
(1924) Toccata
(1924) A Piece for Yvonne
(1926) Chrissemas Day in the Morning Op. 46/1
(1927) Two Northumbrian Folk Tunes Op. 46/2
(1930) Nocturne
(1932) Jig

Piano Duet

(1893) Introduction and Bolero
(1895) Dances
(1899) Duet
(1914-6) The Planets Op. 32

Organ

(1891) Four voluntaries
(1914-6) Neptune [arr from the Planets]
(1925) A Duet for Three Hands and No Feet [arr from Terzetto]

Opera

(1892) Lansdown Castle: operetta in 2 acts
(1894) Ianthe: romantic operetta for children
(1895) The Revoke: opera in one act
(1896) The Magic Mirror: opera in one act
(1896) The Idea: children's operetta in 2 acts
(1901-2) Cinderella
(1902) The Youth's Choice: a musical idyll in one act Op. 11
(1900-6) Sita: opera in 3 acts Op. 23
(1908-9) Savitri Op. 25
(1917-8) Opera as She Wrote: parody
(1918-22) The Perfect Fool: opera in one act Op. 39
(1924) At the Boar's Head: a musical interlude in one act Op. 42
(1929-30) The Wandering Scholar: chamber opera in one act Op. 50

Orchestral

(1891) Intermezzo
(1891) Scherzo
(1891-2) Funeral March
(1892) Symphony in C Minor
(1893) Bolero
(1897) A Winter's Idyll
(1899) Walt Whitman: overture Op. 7
(1899) Suite de Ballet Op. 10
(1900) Cotswolds Symphony Op. 8
(1903) Indra Op. 13
(1906) Dreaming [orig. Berthold Tours orch. Holst]
(1906) Minuet d'Amour [orig. Frederick H. Cowen, orch. Holst]
(1906-7) Songs of the West Op. 21a
(1906-7) A Somerset Rhapsody Op. 21b
(1906) Two Songs without Words Op. 22
(1909-10) Beni Mora Op. 29/1
(1911) Phantastes Suite Op 29/2 [withdrawn]
(1914-6) The Planets: suite Op. 32
(1915) Japanese Suite Op. 33
(1916-8) The Golden Knot Untied [orig. Henry Purcell, arr. Holst]
(1916-8) The Married Beau [orig.Henry Purcell, arr. Holst]
(1916-8) The Virtuous Wife [orig.Henry Purcell, arr. Holst]
(1920) A Magic Hour: ballet
(1921) The Lure: ballet
(1918-22) Ballet music from the Perfect Fool Op. 39
(1922) A Fugal Overture Op. 40/1
(1927) Edgon Heath Op. 47
(1928) Fugue a la Gigue [orig. J. S. Bach, orch. Holst]
(1931) Hammersmith Op. 52
(1932) Cappricio [arr. Imogen Holst (1968)]
(1933-4) Scherzo

Solo Instruments:
                              with orchestra

(1905) A Song of the Night Op. 19/1 [violin]
(1911) Invocation Op. 19/2 [cello]
(1923) A Fugal Concerto Op. 40/2 [flute, oboe]
(1929) Double Concerto Op. 49 [2 violins]
(1933) Lyric Movement [viola]

                              with piano

(1901-2) Six Solos: Nos. 1-5 [violin]
(1903) Landler [2 violins]
 
                              other
(1894) Duet [trombone and organ]

Solo Voice:
                              with piano

(1891) The Harper
(1891) Die Sprode
(1891-2) There is Dew for the Flow'ret
(1892) I Come from Haunts of Coot and Hern
(1892) Sing Heigho: 1st setting
(1893) Anna-Marie
(1893) A Lake and a Fairy Boat: 1st setting
(1893) There Sits a Bird on Yonder Tree
(1893) The White Lady's Farewell
(189-) Now Sleep and Take They Rest
(189-) Ah, Come, Fair Mistress
(189-) The Exile of Erine
(1896-8) Four Songs
(189-) I Scanned Her Picture
(1897) Airly Beacon
(1897) A Lake and a Fairy Boat: 2nd setting
(1897) Not a Sound But Echoing in Me
(1897) O Lady, Leave That Silken Thread
(1897) Sing Heigho: 2nd setting
(1897) Song to the Sleeping Lady
(189-) Twin Stars Aloft
(189-) Autumn Song
(189-)The Day of the Lord
(189-)Two Brown Eyes
(1898) My Joy
(1898) Whether We Die or Live
(1898-9) Bhanavar's Lament
(189-) Draw Not Away Thy Hands
(1900) She who is Dear to Me
(1901-2) The Ballade of Prince Eric
(1902-3) Six Songs (for baritone) Op. 15
(1902-3) To a Wild Rose
(1903) A Prayer for Light
(1903) Song of the Woods
(190-) To Hope
(1903-4) Six Songs (for soprano) Op. 16
(1904) Dewy Roses
(1904-5) Darest Thou Now, O Soul
(1906-7) Stu Mo Run [arr. Holst]
(1906-14) Nine Folksongs [arr. Holst]
(1907) The Heart Worships
(1907-8) Vedic Hymns Op. 24
(1911) Glory of the West [arr. Holst]
(191-) A Vigil of Pentecost
(192-) The Ballad of Hunting Knowe
(192-) He-Back She-Back
(1929) Twelve Songs Op. 48
(1930) God Be in My Head

                              with Orchestra

(1898) Ornulf's Drapa (for baritone) Op. 6
(1904) The Mystic Trumpeter (for soprano) Op. 18

                              with Violin

(1916-7) Four Songs Op. 35
(1918) May Day Carol [with 2 violins]

String Orchestra

(1898) Suite in G minor
(1913) St. Paul's Suite Op. 29/2
(1928) Nocturne from A Moorside Suite [arr. Holst]
(1933) Brook Green Suite