Ambient prose might be like
"The Autumn of the Patriarch" by Gabriel Garcia Marquez.
The last chapter of James Joyce's "Ullyses" AKA Molly Bloom's Soliloquiy (sp?).
Teep's record reviews.
How about "Hopscotch" by Julio Cortezar?
As much as I'm a music fan, much more wild freak-ass mind-fuck comes from
the point of a pen than any army of TB303's. You can go back centuries for
examples.