Tarkus

Their official website is Bullofheaven(dotcom). Sorry, I can't post URLs until I make a few more posts . It streams all of their music for free and numbers each project individually. Some of the longer songs also have excerpts.

And yes, their music is highly conceptual. But to the extent that listening to anything can give you an understanding of what Infinite Space really feels like, it is their music.

And I definitely agree with dankrsta; the length of the music isn't relevant, it is just different ways off exploring new conceputal ground.

One of the things I like most about "Of What Far Sea Upon What Unknown Unground" (track 205 on their website) is the fact that the music is more complicated than the ear's ability to percieve. It changes every time you listen to it, because you follow different subtleties inside the soundscape.

Now that is awesome