| 1889 | Salut d'amour op.12 (orch.) | Confirmed | 3' |
| 1890 | Froissart Overture op.19 | Confirmed | 15' |
| 1892 | Serenade for Strings in E minor, op. 20 | Confirmed | 12' |
| 1899 | Chanson de matin op.15/2 (orch.) | Confirmed | 3' |
| 1899 | Chanson de nuit op.15/1 (orch.) | Confirmed | 4' |
| 1899 | Sea Pictures, op. 37 | Confirmed | 23' |
| 1899 | Variations on an Original Theme, op. 36 “Enigma” | Confirmed | 30' |
| 1900 | The Dream of Gerontius, op. 38 · chorus | Confirmed | 100' |
| 1901 | Cockaigne (In London Town) Overture op.40 | Confirmed | 15' |
| 1901 | Pomp and Circumstance March No. 1, op. 39 | Confirmed | 6' |
| 1901 | Pomp and Circumstance March No.2 op.39/2 | Confirmed | 5' |
| 1904 | In the South (Alassio), op. 50 | TBD | 21' |
| 1904 | Pomp and Circumstance March No.3 op.39/3 | Confirmed | 5' |
| 1905 | Introduction and Allegro, op. 47 | Confirmed | 15' |
| 1907 | Pomp and Circumstance March No.4 op.39/4 | Confirmed | 5' |
| 1907 | The Wand of Youth — Suite No.1 op.1a | Confirmed | 20' |
| 1908 | Symphony No. 1 in A-flat major, op. 55 | Confirmed | 50' |
| 1908 | The Wand of Youth — Suite No.2 op.1b | Confirmed | 17' |
| 1909 | Elegy for strings op.58 | Confirmed | 5' |
| 1910 | Violin Concerto in B minor, op. 61 | Confirmed | 50' |
| 1911 | Coronation March op.65 | Confirmed | 9' |
| 1911 | Symphony No. 2 in E-flat major, op. 63 | Confirmed | 52' |
| 1912 | Crown of India Suite op.66 | Confirmed | 30' |
| 1912 | The Music Makers op.69 · chorus | Confirmed | 40' |
| 1913 | Falstaff — Symphonic Study op.68 | Confirmed | 35' |
| 1914 | Sospiri op.70 | Confirmed | 5' |
| 1919 | Cello Concerto in E minor, op. 85 | Confirmed | 30' |
| 1930 | Pomp and Circumstance March No.5 op.39/5 | Confirmed | 6' |
| 1931 | Nursery Suite | Confirmed | 18' |
| 1934 | Symphony No.3 (elab. Payne) | Confirmed | 55' |
| — | Dream Children (Enfants d'un rêve), op. 43 | TBD | — |
| — | Grania and Diarmid, op. 42: Incidental Music and Funeral March | TBD | — |
| — | Imperial March, op. 32 | TBD | — |
| — | Minuet, op. 21 | TBD | — |
| — | Romance for Bassoon and Orchestra, op. 62 | Confirmed | — |
| — | Sérénade lyrique | TBD | — |
| — | Sevillana (Scene Espagnole), op. 7 | TBD | — |
| — | Sursum Corda, op. 11 | TBD | — |