Steve, could someone with only a standard dulcimer take this class or would they need a resonator dulcimer?
Great question, Dusty, and the answer is "YES!"
What is needed for best results is a dulcimer that can be set up with 4 equi-distant strings, a nut-lifter (to raise the strings off of the fret board.) Contact me directly @ email@example.com for one of those.
And you'll need a slide for the left hand.