Thanks so much, Robin, again!
At the risk of hubris, there's not a whole lot in the classical world that's written for mountain dulcimer, beyond what I've written and pieces written for me. I'm pretty sure composers avoid what they think are limitations, especially the traditional non-chromatic fretboard and three-string configuration. But these are things I love. I've never considered getting a chromatic dulcimer (not that I have anything against it), probably in large part because I've played guitar for decades.
It's perfectly possible to play chromatic music on a dulcimer with a traditional fingerboard, if you're interested, and it rmakes you find interesting combinations. Three basic ways of playing chromatically:
1) non-standard tunings
2) bending notes
3) harmonics
I hope some of you will listen to the album when it starts streaming soon. My earlier albums are easy to find online on many streaming services.
Have a wonderful week!