Euphonicon

The distinguishing feature of the euphonicon is that the iron harp frame projects from the body on the left, such that the bass strings are open to view.

It also has unusual stringing and tuning arrangements, and an early example of drop-action.

[2] Although the euphonicon resembles a harp piano (claviharp) in appearance, the action strikes strings with hammers rather than plucking them.

It was never popular, but a number of examples exist in good condition in museum collections.

An instrument advertised in Sydney as "Beal's [sic] Royal Patent Grand Pianoforte Euphonicon" with a compass of seven octaves, C to C, was described as