Chord Layouts
Common Autoharp Chord Button Layouts
Most commonly, autoharp chord bar/button layouts, group chord types by row. For example, many factory layouts organize 7ths (Ex: D7), Majors (M), and Minors (m) together. Some autoharpists may choose to rearrange the rows to their preference, like moving the major row to the outside.
Also see Notes in Common Chords