Saturday 21 March 2020, 20:00: Memorial Concert conducted by Joop Boerstoel in the Amphion theater in Doetinchem. Participants are: The Symphonic Wind Orchestra Gaanderen, Large mixed choir, Ben Simmes (tutor) and four soloïst: Irma ten Brinke, Ellen Pieterse, Jean-Léon Klostermann and Ina Boersma.