Piano-organ

Piano-organ (Fr.: piano organisé, piano-orgue; Ger.: Orgelklavier), a combination of piano and organ, very pop. at the end of the 18th c. Johann Andreas Stein of Augsburg built one in 1772, now preserved in the Göteborg museum, with 2 manuals, the upper for the piano, the lower for the organ; in the same year L'Épine of Paris built one, also with 2 manuals; another, by Zumpe & Buntebart, of 1778 is preserved in Paris. Most of the surviving specimens from 1785 on are in form of square pianos…