Robert AdelsonFeb 7, 20191 minOriginality and Influence: Charles Gröll’s Role in the Invention of the Double-action HarpThe linked article is an expanded version of the paper Robert Adelson read at the conference “The Early Pedal Harp as a Museum Artefact,”...
Mike BaldwinFeb 2, 20191 minErat Harp Sales (1821-1824)The linked document (click on the image) is a transcription of the Erat Company's harp sales (21 February 1821 - 29 June 1824), taken fro...