Beethoven, Ludwig van : Ouvertüre zur Oper „Leonore”, 3
| Louis Spohr an Ambrosius Kühnel in Leipzig | Gotha, Sonnabend 24. November 1810 | 1810112420 |
| Thomas Barker an Louis Spohr in Kassel | Thirkleby Thirsk, Donnerstag 4. Februar 1836 | 1836020414 |
| Louis Spohr an Ambrosius Kühnel in Leipzig | Gotha, Sonnabend 24. November 1810 | 1810112420 |
| Thomas Barker an Louis Spohr in Kassel | Thirkleby Thirsk, Donnerstag 4. Februar 1836 | 1836020414 |