opening - philip glass

Though the composers you mention are certainly well thought of in the musical community, they are all relatively inaccessible, Ferneyhough in particular. Just because a musical idea is simple does not mean it is drivel. Insulting others based on very subjective means of assessing music is not going to win them over to your side.

Define what you think is accessible. Given, composers like Xenakis are coming from an alien aesthetic to most, as the music pushed NEW boundaries and doesn't placate to a pop audience.
Although Xenakis was no Bach by a long-shot, one can make an apt analogy here: Bach, during his time period, was more famed for his improvisational virtuosity at Keyboard instruments - specifically the Organ. Much of his music wasn't thought much of during his lifetime. In fact, it was seen as odd by many.

I think the same can be said of progressive composers today - well, some of them.
Of course, the perceptual likes and dislikes of many regarding will always be subjective; however, you certainly couldn't argue that glass is progressive. If you could, you deserve to be editor of a modernist music journal.
I would rather be entranced into a state of novel thinking rather than be battered by such simplistic, overtly placating nonsense; nonsense which breaks no new ground.

phenomenal graphics

lol...geez,,,what's with the vapid, self-promoting rants on this video...?

haha, that's what i was thinking. can't people just enjoy good music?

I just love this piece. It's pretty simplistic, but eerily soothing at the same time. Well done

I believe its used to describe the fourth dimension. I once saw something like it before, the artist used these grids or cells, that sort of resemble cartesian coordinates to describe the flux of say a hypercube. If you notice although the white rings give the resemblance to a cube, the lines do not connect in such a way to make a cube. Thus you have a kind of movement that gives the impression of a 4D bulge in 3D space.

Man, there is quite a lot involved in creating a minimalist piece that's successful like this one. If I knew all the secrets I'd be writing stuff like this myself and getting famous.