Unger, Johann Friedrich



Born in Brunswick, where he became councillor and private secretary to the Duke. He claimed to be the first who attempted to record the notes played on a keyboard by means of a mechanical contrivance attached to it. He wrote a detailed description of this machine in his Entwurf einer Maschine, etc., published in 1774. A similar instrument was invented by the mechanician, Hohlfeld, in 1752.