| Fantasia and Fughetta in D major | Composer / credit Gottfried Kirchoff | Listed instruments See edition details | View sheet music → Work & edition details |
| Serenade, Op.72 | Composer / credit Cyrill Kistler | Listed instruments See edition details | View sheet music → Work & edition details |
| Canons and Fugues for Piano | Composer / credit August Alexander Klengel | Listed instruments See edition details | View sheet music → Work & edition details |
| 30 Duets for Two Horns | Composer / credit Henri Kling | Listed instruments See edition details | View sheet music → Work & edition details |
| 3 Concertos for 2 Flutes, Op.3 | Composer / credit Johann Friedrich Klöffler | Listed instruments See edition details | View sheet music → Work & edition details |
| 6 Flute Concertos, Op.1 | Composer / credit Johann Friedrich Klöffler | Listed instruments See edition details | View sheet music → Work & edition details |
| 3 Flute Concertos, op.2 | Composer / credit Johann Friedrich Klöffler | Listed instruments See edition details | View sheet music → Work & edition details |
| Andante und Toccata | Composer / credit August Klughardt | Listed instruments See edition details | View sheet music → Work & edition details |
| Quintet for Winds, Op.79 | Composer / credit August Klughardt | Listed instruments See edition details | View sheet music → Work & edition details |
| New Church Melody: Being a Set of Anthems, Psalms, Hymns, &c. on Various Occasions. In Four Parts with a great Variety of other Anthems, Psalms, Hymns, &c. composed after a Method entirely new, and never printed before | Composer / credit William Knapp | Listed instruments See edition details | View sheet music → Work & edition details |
| A Set of New Psalms and Anthems in Four Parts; on Various Occasions | Composer / credit William Knapp | Listed instruments See edition details | View sheet music → Work & edition details |
| String Quartet No.2 | Composer / credit Hans Koessler | Listed instruments See edition details | View sheet music → Work & edition details |
| String Quintet | Composer / credit Hans Koessler | Listed instruments See edition details | View sheet music → Work & edition details |
| Sextet in F minor for 2 violins, 2 violas, 2 cellos | Composer / credit Hans Koessler | Listed instruments See edition details | View sheet music → Work & edition details |
| Frühlingslied, Op.38 | Composer / credit Ernesto Köhler | Listed instruments See edition details | View sheet music → Work & edition details |
| 16 Compositions, Op.45 | Composer / credit Moritz Köhler | Listed instruments See edition details | View sheet music → Work & edition details |
| Réveil du Lion, Op.115 | Composer / credit Anton de Kontski | Listed instruments See edition details | View sheet music → Work & edition details |
| 3 Feuilles d'Album, Op.26 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 3 Fugues, Op.12 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| Mazurka pour le piano | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 2 Mazurkas, Op.3 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 4 Miniatures, Op.17 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 4 Petits Morceaux, Op.13 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 5 Morceaux, Op.20 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| Polka de Salon, Op.16 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| String Quartet No.3, Op.32 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| 14 Tableaux musicals [sic] de la vie enfantine, Op.53 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| Valse, Op.6 | Composer / credit Alexander Kopylov | Listed instruments See edition details | View sheet music → Work & edition details |
| Aquarelles, Op.22 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Ein Traum, Op.26 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Fur die Jugend, Op.21 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Mazurka No.3, Op.14 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Miniatures, Op.10 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| 2 Nocturnes, Op.18 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| 3 Morceaux, Op.3 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Tarantelle No.1, Op.4 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Tarantelle No.2, Op.17 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Valse-Caprice, Op.1 | Composer / credit Genariĭ Osipovich Korganov | Listed instruments See edition details | View sheet music → Work & edition details |
| Capriccio for cello | Composer / credit Szymon Kotynia | Listed instruments See edition details | View sheet music → Work & edition details |
| Ave Maria | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Quasi canto gregoriano | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Creator alme siderum | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Credo | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Do mojej mi | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Do | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Ecce lignum crucis | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Fuga C-dur (2 sogetti) | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |
| Fuga F-dur (a 3 voci) | Composer / credit Jakub Kowalewski | Listed instruments See edition details | View sheet music → Work & edition details |