Autoharp Chord Button for 15-bar Oscar Schmidt Autoharps by dustybarn on Thingiverse: https://www.thingiverse.com/thing:4541225

Summary:
This is a replica of the chord bar button used on 15-bar Oscar Schmidt autoharps. I created this in Fusion360 because I wanted to build a custom 3-row autoharp to support a circle-of-fifths chord complement, and use different-colored buttons for the majors, sevenths, and minors. 