Vey nice build. Whatever you call it, just enjoy playing it. If it were mine, I would call it a dulcimer.

Ken

"The dulcimer sings a sweet song."

Looks great. What its called does not matter so much.

How does it sound?

I like it, no matter what it's called.  

The Scheitholt is 36" long overall with a depth of 2" and a maximum width of 6".  It's tuned DAd but with a VSL of about 27" and quite a low action the strings can "buzz" a little sometimes.  I shall experiment with a higher tuning or a taller bridge to raise the action once it's played in a little more.