ILLUSTRATIONS: 1) Sweelinck (Jan Harmenszoon Muller 1624 engraving of the famous portrait painted by an anonymous in1606) (for such a portrait. go to "Malle Sijmen" in this same channel); 2) Emanuel de Witte (?) (Interior of the Oude Kerk and the large Hendrik Niehoff organ, as Sweelinck knew it (i. e., prior to its transformation), seen from the west end of the southern aisle to the north. Comsposition certainly stemming from Sweelinck genius. TEMPERAMENT; 1/4 comma meantone/A=443
