This “Andante for Harpsichord” in D major is kept at the Staatsbibliothek zu Berlin Preußische Kulturbesitz (you can consult it at this link) Mus.ms. . 1267.

Two sheets: the first contains the title (“Andante | for the | Harpsichord | By Mr. Beethoven”) and two pages of music (1 verso – 2 recto). The fourth sheet is blank.

At the bottom right of the title page one can read: “Wilhelm Tappert, Berlin 21/3/77 (1877).” Possible date of acquisition. (It appears that two days later Tappert sent Gustav Nottebohm a copy of this music, which Nottebohm never cited in his studies. The reason for this silence might be the fact that Nottebohm died in October 1882 and could not mention it in his Zweite Beethoveniana, which was published posthumously in 1887. Only Klein cited the Andante without adding details. If it were an original piece, it might be occasional music from Beethoven’s late Bonn period or the very early years in Vienna.)

Wilhelm Tappert (Berlin, 19 February 1830) was a German writer and composer. He trained as a teacher and from 1856 to 1858 studied music with Sigfrid Wilhelm Dehn and Adolph Kullak (also a collector of Beethoven manuscripts) in Berlin, where he settled in 1866 and worked as a music critic and teacher. He edited the Allgemeine Deutsche Musikzeitung from 1876 to 1880. He worked mainly as a teacher and music critic. At the beginning of 1897, he was accused of corruption; after the conviction, he resigned from the journal he had founded, the Kleiner Journal. Tappert published theoretical musical writings, piano pieces, Lieder, modern adaptations of popular songs from Old German, and a selection of old lute pieces.