Maurer, Louis : Konzerte, Vl 1 2 3 4 5 6 Orch
| Eduard Otto an Louis Spohr in Kassel | Braunschweig, Sonntag 23. August 1844 | 1844082346 |
| Christian Friedrich Lueder an Louis Spohr in Kassel | Katlenburg, Montag 16. September 1844 | 1844091635 |
| Eduard Otto an Louis Spohr in Kassel | Braunschweig, Sonntag 23. August 1844 | 1844082346 |
| Christian Friedrich Lueder an Louis Spohr in Kassel | Katlenburg, Montag 16. September 1844 | 1844091635 |