I was somewhat emboldened to post this after seeing the thread on here about abstract music and people with AS. If you gravitate towards this kind of sound, I would like to see your input on my playing.
http://www.soundclick.com/colinwhite
In truth, I was actually attracted to this sound after pounding on the piano in fury and frustration about learning the classical repertoire (which I have failed miserably at).
If you like this sound I'd recommend looking into the composers from the Second Viennese School such as Schoenberg, Webern, and Berg, as well as Karlheinz Stockhausen, Xenakis, Ligeti, Messiaen, Sorabji, and late Scriabin.
I'm not sure why there is such a stigma about this kind of music. Inaccessible, yes, but so are the complicated works of all the classical composers. I suppose classical music has gained its own kind of stigma, as the most you'll hear from someone about it is "it's relaxing." I think that's quite a shame.
I must emphasize Sorabji here. The man was obsessed with writing hugely complicated music in non-tonal forms. They were often enormous in scope, with many of his works reaching well beyond multiple hours in duration. Check out Jonathan Powell's recordings of Sorabji and Sorabji's biography.
Wrong planet, indeed.
-Colin