Longman and Broderip, [electronic resource] : manufacturers of musical instruments, and music-sellers to His Royal Highness the Prince of Wales; No. 26, Cheapside, and No. 13, Haymarket, London; Manufacture and Sell, Wholesale, Retail, and for Exportation, By the King's Royal letters patent, patent piano fortes. The Construction of these Instruments exceeds all others in respect to the Touch and Simplicity of it, which can never fail in the Operation; and their Clearness and Brilliancy of Tone is far superior to Conception. Soon as the Hammer strikes the String, it immediately falls back; whereas, in other Instruments, the Hammer dances on the Jack, and occasions a jarring Noise in the Tone. They are easily kept in Regulation, and have met the general Approbation of the most esteemed Masters.