Omar (Munoz-Cremers, but he’s Omar here) has made a selection of his writing on music (mostly done for Kindamuzik and De Subjectivisten), burned a pdf of it, gave it the title Toekomstdagen 2002-2007 and put it online at lulu.com as a free download. Which means you can order a hard-copy as well: http://www.lulu.com/content/1285472.