Ludwig van Beethoven, Brief an Adolph Martin Schlesinger in Berlin, Gneixendorf, 13. Oktober 1826

Beethoven writes to his publisher Schlesinger from his brother Johann's estate where he had gone to recuperate after a tiring summer. He immediately feels better in the country, "the tiredness from the city has peeled away". He thus promises to soon send the Quartet op. 135. He also assures him that he will soon send something for Herr Marx. Marx had requested a small "Liedchen" for the Berlin AMZ; Beethoven had apparently never sent one.

As far as the marches (probably WoO 18-20 and 24) are concerned, Beethoven asks the publisher to be patient. He had obviously also not kept this promise either.

Beethoven asks Schlesinger for 4,000 ducats for the complete edition of his works (a project which Beethoven had pursued for many years and offered to different publishers). He agrees to Schlesinger's suggestion of printing something about Beethoven in the newspaper, thus hoping that rumours will be dispelled.

Beethoven tells him that an envoy has taken the dedication copy of the Ninth Symphony (op. 125) to the King of Prussia. He is eagerly awaiting the King's reaction. As far as the opera is concerned, Beethoven puts Schlesinger off till a later date. The two of them had already considered an opera for the Berlin Royal Theatre but it was not realized.