
The Masterworks has more notes, too. 5 more, to be exact. That will let me play more tunes, though I have by no means exhausted the list of tunes that could be played on my Dusty Strings. Still, it's nice to know that if I get a hankering to learn "Masters in This Hall" this Christmas, I won't have to retune my right treble D to a D#.

The big difference is in how they sound: The Masterworks is a lot more resonant. It has a richer, warmer, fuller sound. And the sustain goes on forever. Compared to the Masterworks, the Dusty Strings sounds a bit plinky.
Of course, when you're not comparing them, the Dusty Strings is still a fine instrument. I'm definitely looking forward to taking it to work to replace the Dusty Strings 12/11 that I have there.
And, what'll become of the Dusty Strings 12/11 at work? Alas, going into that would make this a tale of three dulcimers. All I can say for sure is that Banjo Bob has first right of refusal on it.