The Beethoven-Haus in Bonngasse is the house where Beethoven was born. His early years in Bonn and his subsequent progress are depicted in the museum in his former residence. Beethoven’s christening cap, desk, viola and his final fortepiano are all exhibited here. The collection has many other musical instruments and items of memorabilia as well as manuscripts and portraits, such as the famous one painted by Joseph Karl Stieler. Amongst the original manuscripts which the Beethoven-Haus keeps in the archive located directly below the chamber music hall are the “Moonlight Sonata”, the "Diabelli variations", the "Missa solemnis" and his 6th (Pastoral) Symphony.
Quite a few of the concerts of the Beethovenfest Bonn take place in the chamber music hall of the Beethoven-Haus, which was opened in 1989. These include piano recitals, chamber music performances from duet to octet evenings, evenings of songs and experimental performances.