Under the spell of geometry, at the zenith of modernity, in the style of objectivity
90 Years Oloid – the inventor Paul Schatz and the year 1929 with works on the oloid by Angelika Bartholl, Anna Kubelík, Marion Ehrsam, Ólafur Elíasson 10 November 2019 to 26 January 2020 at the Paul Schatz Foundation – Basel/Switzerland
A version by Johann Sonnleitner in extended tonality for 24-tone harpsichord, 24-tone accordion sound sculptures and percussion every year in the Fraumünster in Zurich and other venues.