My most recent instrument is this custom chromatic autoharp commissioned by a musician here in Ohio.

This twenty-one chord, thirty-seven string chromatic differs from my other autoharps in several ways. My original frame design was ideal for diatonic tunings that required fewer chord bars but not optimal for twenty-one bar chord sets. This newer design with its angled and curved bridges favors the extra chord bars with more playing space in the treble area as well as fewer harmonics.

For strength and stability the frame is cut as a single piece of laminated pin block with no joints (my usual method). This frame has areas routed away inside to increase the internal volume of the box. That, with tuned X-bracing renders improved tone and volume.

The twenty-one maple chord bars are capped with walnut buttons and are mounted upon combs made of #6 bridge pins and Delrin bases. Just to be different, I kinda hybridized the chord bar covers by making a shell out of walnut and very thin birch plywood. Its top surface is veneered with sequence-matched walnut burl. There is no distinct advantage for making it this way but the larger areas of felt damping on the underside seem to make the chord bars quieter.

The side trim and bridges are walnut.

A larger laser cut rosette surrounds a smaller sound hole.

The soundboard is western red cedar. 

A custom thirty-seven string Schreiber string set is anchored by Daigle fine tuners.