Bowed viol

The scale length is the same as the one of a tenor violon. The body is made of solid alder and spruce veneer as for the soundboard and maple for the back. In the video, you can see the bowed viol and its first 8-string model:

Among the pictures below, you can see a double-neck model: the added neck allows to add 5 more sympathetic strings to generate a natural reverb.