Plain local walnut, spruce from THE tree. Rosewood pegs. Here tuned f' to F, but built to suit any tuning.
There are ouds which appear to be built more for the eye rather than the ear, with decorative woods, plenty of ornaments, lots of inlays and marquetry. And there are those built with focus on what truly matters to the musicsian: sound and playabiltiy. What we find in the museums today are usually instruments of the first category; they were kept well because of their material value and often hardly played. The musicians always prefered the latter catergory, not only to avoid unnessecary expenses, but also because often decoration and sound quality are adverse aspects. In addition, I find great beauty in simplicity - often, less is more.