This small museum is set in the attic flat where Johannes Brahms spent his summers for nearly a decade. The two rooms have been preserved with the composer's furniture, his piano, original manuscripts, photographs, and personal letters — a remarkably intact portrait of a working composer at the height of his career.
The visit is short — half an hour or so — but it conveys the modest scale on which serious music was made even by one of the era's leading composers. Combine it with a walk back into town along the river. The museum is run by volunteers and has limited opening hours; check the website before setting out.