A bit of chromatic chord-melody: "Five Foot Two"
Here's a bit of chord-melody playing that really shows off the chromatic dulcimer's strengths. "Five Foot Two, Eyes of Blue," played on my Folkcraft chromatic tuned CGC.
The first two choruses (instrumental and vocal) are played in C, using every fret in the first octave. Third time, it modulates to C#, so the 7+ and 8+ get some action, too.
Chord-wise, it uses a veritable bestiary of 7th chords, plus a couple of 9ths, 13ths, diminished 7ths, a 7+5, and maybe one or two others transiently.