Mozart’s "Adagio in C major" for English horn, 2 violins and violoncello KV 580a has survived as a fragment but based on a comparison of analogous passages the editor, Helmut Renz, was able to complete the movement. In the Carus edition an arrangement by an unknown author from before 1900 for oboe and string quartet has also been included. The arrangement is written in G major, which is more playable on the oboe.
| Arrangement | Chamber Group |
| NumberOfPages | 16 |
| Publisher | Carus Verlag |
| Contributors | Amadeus Mozart, Wolfgang(Composer) Renz, Helmut(Artist) |
| ISMN | 9790007031466 |