I have a hammered dulcimer, but whether one could call what I do "playing.."

This looks interesting. Standard "traditional" HD's have the bridge set to generate a fifth. Probably intended to be easier and quicker to pick up by those who had the piano as their first instrument.

Would require a different mindset to play, not unlike a standard English concertina Vs my Lachlan McCann System English Concertina...

The only real important thing, though, is what does it SOUND like?

The Quality of the instrument, I mean.

Robin