| Arrangement of | Section | View on IMSLP | Composed | Type | Arranger | Instrumentation | 
| Peer Gynt Suite No. 1, Op. 46 (Grieg, Edvard) | In the Hall of the Mountain King (No.4) |  | 1874 | Incidental music, Suites | Gwyn Seymour | 6 cellos | 
| Academic Festival Overture, Op. 80 (Brahms, Johannes) |  |  | 1880 | Overtures | Gwyn Seymour | 6 cellos | 
| Romanian Folk Dances, Sz.56 (Bartók, Béla) |  |  | 1915 | Dances | Gwyn Seymour | 6 cellos | 
| The Nutcracker (suite), Op. 71a (Tchaikovsky, Pyotr) | Complete |  | 1892 | Ballets, Suites | Gwyn Seymour | 6 cellos | 
| 1812 Overture, Op. 49 (Tchaikovsky, Pyotr) |  |  | 1880 | Overtures | Gwyn Seymour | 6 cellos | 
| Variations on a Rococo Theme, Op. 33 (Tchaikovsky, Pyotr) | Version |  | 1876 | Variations | Gwyn Seymour | 6 cellos | 
| Piano Trio (Ravel, Maurice) | III. Passacaille |  | 1914 | Trios | Gwyn Seymour | 6 cellos | 
| Night on Bald Mountain (Mussorgsky, Modest) | Revision by(1886) |  | 1867 | Symphonic poems | Gwyn Seymour | 6 cellos | 
| Variations on an Original Theme 'Enigma', Op. 36 (Elgar, Edward) | Var.IX. Adagio "Nimrod" |  | 1899 | Variations | Gwyn Seymour | 6 cellos | 
| Guillaume Tell (Rossini, Gioacchino) | Overture |  | 1824 | Operas | Gwyn Seymour | 6 cellos | 
| Ma mère l'Oye (suite) (Ravel, Maurice) | Le jardin féerique (No.5) |  | 1908 | Suites | Gwyn Seymour | 6 cellos | 
| Cello Concerto, Op. 85 (Elgar, Edward) |  |  | 1919 | Concertos | Gwyn Seymour | 6 cellos | 
| Ave Maria, D.839 (Schubert, Franz) |  |  | 1825 | Ave Maria | Gwyn Seymour | 6 cellos | 
| Die Meistersinger von Nürnberg, WWV 96 (Wagner, Richard) | Prelude (Vorspiel) |  | 1862 | Operas | Gwyn Seymour | 6 cellos | 
| 14 Romances, Op. 34 (Rachmaninoff, Sergei) | Vocalise (No.14) |  | 1912 | Romances | Gwyn Seymour | 6 cellos | 
| Cello Concerto No. 2 in D major, Hob.VIIb:2 (Haydn, Joseph) | Complete |  | 1783 | Concertos | Gwyn Seymour | 7 cellos | 
| Leichte Kavallerie (Suppé, Franz von) | Overture |  | 1866 | Operettas | Gwyn Seymour | 6 cellos | 
| Elegy, Op. 24 (Fauré, Gabriel) |  |  | 1883 | Elegies | Gwyn Seymour | 6 cellos | 
| Cello Sonata No. 2, Op. 117 (Fauré, Gabriel) | Andante |  | 1921 | Sonatas | Gwyn Seymour | 6 cellos | 
| Serenade for Wind Instruments, Op. 44 (Dvořák, Antonín) | Complete |  | 1878 | Serenades | Gwyn Seymour | 6 cellos | 
| Sospiri, Op. 70 (Elgar, Edward) |  |  | 1914 | Adagios | Gwyn Seymour | 6 cellos | 
| L'Arlésienne Suite No. 1 (Bizet, Georges) | Complete |  | 1872 | Incidental music, Suites | Gwyn Seymour | 6 cellos | 
| Canzon per sonar septimi toni a 8, Ch.172 (Gabrieli, Giovanni) |  |  | 1597 | Canzonas | Gwyn Seymour | 8 cellos | 
| Capriol Suite (Warlock, Peter) |  |  | 1926 | Suites | Gwyn Seymour | 5 cellos | 
| Sinfonietta (Janáček, Leoš) | Fanfare (No.1) |  | 1926 | Sinfoniettas | Gwyn Seymour | 12 cellos | 
| Pizzicato-Polka (Strauss Jr., Johann) |  |  | 1869 | Polkas | Gwyn Seymour | 6 cellos | 
| Ship o' the Fiend, Op. 5 (MacCunn, Hamish) |  |  | 1887 | Ballades | Gwyn Seymour | 6 cellos | 
| Fantasia on British Sea Songs (Wood, Henry Joseph) | Selections |  |  | Fantasias | Gwyn Seymour | 8 cellos 7 cellos
 | 
| Concerto Grosso in D minor, H.143 'La Folia' (Geminiani, Francesco) |  |  |  | Concerti grossi | Gwyn Seymour | 6 cellos |