| Title | 12 Horn Duos | 
| Alternative title | 12 Duets | 
| Creators | Wolfgang Amadeus Mozart (composer) | 
| Opus | K.487 | 
| Instrumentation | 2 horns | 
| Number of movements | 12 | 
| Keys | — | 
| Composed | 1786 | 
| First published | 1802 | 
| Dedication | — | 
| Tempo markings | — | 
| Metronome markings | — | 
| Time signatures | — | 
| Average duration (sec) | — | 
| Number of measures | — | 
| Composition types | Duets | 
| Period | Classical | 
| View on IMSLP |  | 
| Code |  | 
| Title click for details | Metronome | Key | Measures | 
|---|---|---|---|
| Allegro | — | — | — | 
| Menuetto e Trio | — | — | — | 
| Andante | — | — | — | 
| Polonaise | — | — | — | 
| Larghetto | — | — | — | 
| Menuetto e Trio | — | — | — | 
| Adagio | — | — | — | 
| Allegro | — | — | — | 
| Menuetto e Trio | — | — | — | 
| Andante | — | — | — | 
| Menuetto e Trio | — | — | — | 
| Allegro | — | — | — | 
| Details | Section | Arranged for | Arranger | 
|---|---|---|---|
| view | Complete | 2 recorders | Alberto Gomez Gomez | 
| view | Complete | oboe and English horn | — | 
| view | Complete | English horn and viola | Alessandro Moraes | 
| view | Complete | 2 clarinets | Jürgen Knuth | 
| view | Complete | 2 clarinets | Richard Rau | 
| view | Complete | clarinet and violin | Tom Van der Grinten | 
| view | Complete | clarinet and viola | Jürgen Knuth | 
| view | Complete | clarinet and viola | Richard Rau | 
| view | Complete | clarinet and cello | Werner J.E. De Bleser | 
| view | Complete | bass clarinet and cello | Werner J.E. De Bleser | 
| view | Complete | 2 violins | — | 
| view | Complete | violin and viola | — | 
| view | Complete | 2 cellos | Orfeo Mandozzi | 
| view | Complete | piano | Alberto Gomez Gomez | 
| view | Allegro (No.1) | horn and trumpet | Hans Jorgen Messerschmidt | 
| view | Allegro (No.1) | 2 trumpets | Klaus Heidtmann | 
| view | Allegro (No.1) | 2 trumpets | Hans Jorgen Messerschmidt | 
| view | Minuetto allegretto (No.2) | clarinet and viola | Richard Rau | 
| view | Andante (No.3) | trumpet and euphonium | Hans Jorgen Messerschmidt | 
| view | Larghetto (No.5) | 2 trumpets | Hans Jorgen Messerschmidt | 
| view | Minuett (No.6) | horn, trumpet and euphonium | Hans Jorgen Messerschmidt | 
| view | Adagio (No.7) | 2 trumpets | Klaus Heidtmann | 
| view | Adagio (No.7) | 2 trumpets | Hans Jorgen Messerschmidt | 
| view | Allegro (No.8) | horn and trumpet | Hans Jorgen Messerschmidt | 
| view | Allegro (No.8) | 2 trumpets | Klaus Heidtmann | 
| view | Minuett (No.9) | trumpet and euphonium | Hans Jorgen Messerschmidt | 
| view | Andante (No.10) | 2 flutes | Franz Anton Hoffmeister | 
| Details | Section | Type | Publisher | Date | File | 
|---|---|---|---|---|---|
| view | Complete | — | Manuscript | — | Selections (Nos.1, 3, 6) (parts) · view | 
| view | Complete | — | Kunst- und Industrie-Comptoir | 1802 | Complete Parts · view | 
| view | Complete | — | Breitkopf und Härtel | 1892 | Complete Score · view | 
| view | Complete | — | Bärenreiter-Verlag | 1975 | Complete Score (scan) · view | 
| view | Complete | — | Mutopia | — | Complete Score · view 1. Allegro · view 2. Menuett · view 3. Andante · view 4. Polonaise · view 5. Larghetto · view 6. Menuett & Trio · view 7. Adagio · view 8. Allegro · view 9. Menuett & Trio · view 10. Allegro · view 11. Andante · view 12. Allegro · view | 
| view | Complete | — | — | — | Complete Score · view Engraving files (Finale) · view | 
| view | Complete | — | Fabio Henrique Martins | 2022 | Complete Score · view Horn 1 (F) · view Horn 2 (F) · view | 
| view | Complete | Arrangement for 2 recorders | — | — | Complete Score (C recorders) · view Complete Score (D recorders) · view | 
| view | Complete | Arrangement for oboe and English horn | — | — | Complete Score · view | 
| view | Complete | Arrangement for English horn and viola | — | — | Complete Score · view | 
| view | Complete | Arrangement for 2 clarinets | Jürgen Knuth | — | Complete Score · view Engraving files (Capella) · view | 
| view | Complete | Arrangement for 2 clarinets | — | — | Complete Score (1 for left hand only) · view | 
| view | Complete | Arrangement for clarinet and violin | Tom Van der Grinten | 2021 | Complete Score · view | 
| view | Complete | Arrangement for clarinet and viola | Jürgen Knuth | — | 1. Allegro · view 2. Menuett · view 3. Andante · view 4. Polonaise · view 5. Larghetto · view 6. Menuetto e Trio · view 7. Adagio · view 8. Allegro · view 9. Menuett & Trio · view 10. Allegro · view 11. Menuett & Trio · view 12. Allegro · view Engraving files (Capella) · view | 
| view | Complete | Arrangement for clarinet and viola | — | — | Complete Score · view Complete Score (clarinet left hand only) · view | 
| view | Complete | Arrangement for clarinet and cello | — | — | Complete Score · view | 
| view | Complete | Arrangement for bass clarinet and cello | — | — | Complete Score · view | 
| view | Complete | Arrangement for 2 violins | Breitkopf und Härtel | — | Complete Score · view Complete Score (gray background) · view | 
| view | Complete | Arrangement for 2 violins | — | — | Complete Score · view | 
| view | Complete | Arrangement for violin and viola | Breitkopf und Härtel | 1893 | Complete Score · view Covers · view | 
| view | Complete | Arrangement for violin and viola | — | — | Complete Score · view | 
| view | Complete | Arrangement for violin and viola | — | — | Complete Score · view | 
| view | Complete | Arrangement for 2 cellos | — | — | Complete Score · view | 
| view | Complete | Arrangement for piano | — | — | Complete Score · view | 
| view | Allegro (No.1) | Arrangement for horn and trumpet | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Allegro (No.1) | Arrangement for 2 trumpets | — | — | Complete Score · view | 
| view | Allegro (No.1) | Arrangement for 2 trumpets | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Minuetto allegretto (No.2) | Arrangement for clarinet and viola | — | — | Complete Score · view | 
| view | Andante (No.3) | Arrangement for trumpet and euphonium | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Larghetto (No.5) | Arrangement for 2 trumpets | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Minuett (No.6) | Arrangement for horn, trumpet and euphonium | Hans Jorgen Messerschmidt | 2019 | Complete Score and Parts · view | 
| view | Adagio (No.7) | Arrangement for 2 trumpets | Klaus Heidtmann | 2022 | Complete Score · view | 
| view | Adagio (No.7) | Arrangement for 2 trumpets | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Allegro (No.8) | Arrangement for horn and trumpet | Hans Jorgen Messerschmidt | 2019 | Complete Score · view | 
| view | Allegro (No.8) | Arrangement for 2 trumpets | Klaus Heidtmann | 2022 | Complete Score · view | 
| view | Minuett (No.9) | Arrangement for trumpet and euphonium | Hans Jorgen Messerschmidt | 2019 | Complete Score and Parts · view | 
| view | Andante (No.10) | Arrangement for 2 flutes | Klaus Heidtmann | 2022 | Complete Score · view | 
| Details | Type | Arranged for | Files | 
|---|---|---|---|
| view | Synthesized | — | 1. Allegro · file 2. Menuett · file 3. Andante · file 4. Polonaise · file 5. Larghetto · file 6. Menuetto e Trio · file 7. Adagio · file 8. Allegro · file 9. Menuett & Trio · file 10. Allegro · file 11. Andante · file 12. Allegro · file | 
| view | Synthesized | — | 1. Allegro · file | 
| view | Synthesized | For 2 Clarinets (Knuth) | 1. Allegro · file 2. Menuett · file 3. Andante · file 4. Polonaise · file 5. Larghetto · file 6. Menuetto e Trio · file 7. Adagio · file 8. Allegro · file 9. Menuett & Trio · file 10. Allegro · file 11. Andante · file 12. Allegro · file | 
| view | Synthesized | For Clarinet and Viola (Knuth) | 1. Allegro · file 2. Menuett · file 3. Andante · file 4. Polonaise · file 5. Larghetto · file 6. Menuetto e Trio · file 7. Adagio · file 8. Allegro · file 9. Menuett & Trio · file 10. Allegro · file 11. Andante · file 12. Allegro · file | 
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