Weber, Carl Maria von : Konzertstück, Kl Orch, op. 79
| Henry Blagrove an Louis Spohr in Kassel | London, Dienstag 7. April 1840 | 1840040740 |
| Christian Friedrich Lueder an Louis Spohr in Kassel | Göttingen, Donnerstag 25. November 1841 | 1841112535 |
| Henry Blagrove an Louis Spohr in Kassel | London, Dienstag 7. April 1840 | 1840040740 |
| Christian Friedrich Lueder an Louis Spohr in Kassel | Göttingen, Donnerstag 25. November 1841 | 1841112535 |