David Klavins is a custom piano builder who is interested in extending the tonal color and range of the piano. He is interested in increasing the clarity of sound of the piano.
David Klavins has built multiple pianos with reduced frames to allow the resonance of the strings to be more direct to the listener.
The Una Corda has one string per note throughout the range of the piano.
The M series has maximized the properties required to allow the most robust resonance throughout the pianos range.
David's youtube channel 1) Im mixed about featuring these instruments on the wiki, I think the primary more of its relevance is the implications of this kind of experimentation with the model of how a piano looks and works. These instruments have a kind of Tonal Maximum.