They mention Sabrina in their message ( she attracted their attention of most young men across Europe ) and that it was still thought rebellious for music with sex related lyrics to be played from Hilversum as well as this sort of mixing. TBH it took me a few years to be able to understand enough Dutch to read that message, and I copied it here as its buried amongst a mixture of webpages in English and Dutch that the two chaps set up in the late 1990s which doesn’t appear to have been updated for a while, they are probably too busy these days with family and work commitments..