ABSTRACT
Besides the new technology for music printing, Stanhope developed several novel musical instruments. Although Stanhope must have realised by 1805 that he had not originated the idea of a machine to transcribe keyboard performances, his plans for such a machine—as revealed in letters to him from John North—appear to have extended the prior art significantly. The London piano maker David Loeschman was engaged by Stanhope to make prototypes of two of his other musical inventions. Payments totalling £23 that he made to Loeschman in July 1805 and October 1806 seemingly relate to Stanhope's tuning-glasses. Between January 1819 and May 1820 Mrs Lackner transferred more than £1,300 from her Coutts & Co. account to the Prague bankers Ballabene & Co. In 1821 the Prague music seller Marco Berra published Franz Rudolph Grunwald's 'IX Walzer nebst Coda fur das Pianoforte', which was dedicated to 'Walburga von Lackner'.
