Thanks for posting this, it's beautiful! I already have and enjoy Don Cherry's "Organic Music Society" and love his work on Lou Reed's "The Bells", so I've just bought the "Brown Rice" album as well. It's going down very well so far...
This also made me do a search for "brown rice electric mainline" to see if anybody else had noticed this, and up came a 1997 interview where J says that he'd heard Brown Rice, but only after writing Electric Mainline. He describes this coincidence as "convergence" and mentions a Cluster track that also sounds like EM - time to hunt that down!
Related nostalgic anecdote: my earliest forays onto the internet were in my first year of uni (1998); just after buying Brian Eno's "Discreet Music" I found an intriguing Spiritualized interview online. One part of it stuck in my mind and has stayed there ever since: the writer compared the string arrangement in "Broken Heart" to the process music versions of "Pachebel's Canon in D" on side 2 of "Discreet Music", a similarity I'd noticed myself a week or so before. I've never seen said comparison in print anywhere else, so tonight was my second encounter with that interview nearly 20 years on https://indieethos.wordpress.com/tag/don-cherry/
(despite the url tag, it really is a Spz interview, I promise!)