- Anne Beetem Acker
(b 1786; dc1850). Austrian piano maker. He opened his workshop in 1813 and was granted Austrian citizenship on 6 July 1821. In that year he received a five-year privilege for a music desk with a foot-operated page-turning mechanism, and also a privilege for an organized piano. In 1823 he obtained a five-year privilege for a piano with a transposing keyboard, endorsed by Salieri and noted by Beethoven in his conversation book, vol.3. Böhm’s workshop was at Mariahilf Nr. 77 until about 1831 when he moved to the Neue Wieden 698, the same location becoming Lumpertgasse 821 from 1833 to 1940. In 1835 he was named Second Representative of the Viennese Piano Builders Guild, becoming president in 1836. In July 1837 he received a privilege for an organized piano with a 22-note pedalboard connected to the manual by trackers. Surviving Böhm grand pianos are elaborately encased, with fine veneers, rounded cheeks, ormolu trim, and sculpted legs. No upright or square pianos of his are known. One six-octave (...