Discover music on Discogs, the largest online music database. Buy and sell music with collectors in the Marketplace.
www.discogs.com
Discogs is a good source for information about albums whether on LP or otherwise.
Thanks for pointing out two Dutch composers.
Looks like Joep Beving is very contemporary. I didn't see anything resembling a symphony or orchestral from him, but that's not the be all end all. It looks like he is a solo artist playing piano. Discogs classifies his music as Classical genre and Contemporary style.
The first comment I saw for his "Solipsism" album said this:
The genre is absolutely NOT classical nor has it anything to do with a western classical music tradition. It is more a kind of popular easy listening music. The fact that this music has been played on a piano doesn't make it classical music.
The music of Louis Andriessen is characterized by Discogs as Modern Classical, Experimental or Post Modern. His piece 'De Staat' (The State) is for 4 women's voices, 4 oboes, 4 horns, 4 trumpets, 4 trombones, 2 electric guitars, bass guitar, 2 pianos, 2 harps and 2 violas
My original point about few Dutch composers and a long history of fine Dutch visual artists was not a criticism. It was meant to correlate with your observation that there is visual artistic education in early school but little to no music education. It is an interesting cultural emphasis.