in the years 1822 - 1825 Beethoven wrote several sketches for an overture on the notes B-A-C-H. This inspired me to write an own overture on these fascinating 4 notes (as also others like Bach himself, Schumann, Lizst, ... have also tried). Beethoven's sketches I marked with yellow in the score - I hope you will like it ...
https://www.youtube.com/watch?v=2jF1CNsXj7c
Gerd