just submitted mine, a 30-min piece called “weirwood” – after the magic tree in GoT, which in turn (I just learned!) was named after Bob Weir
my piece is centered on the inner sounds of a tree – mainly a stereo recording I did with contact mics on birch branches (on a live tree) near Selfoss, Iceland a few years ago. other elements are an early NASA audio file with John Glenn, bits of cello and shepard tones s t r e t c h e d, some animals (some from that new Yellowstone drop; some I grabbed myself), and a fire of lodgepole pines. some things sound like space and aliens but they’re all very earth based (with the exception of Glenn, but I guess he wasn’t *that far away…)
@_mark I sent you a DM with a dropbox link 
I’ll probably post an mp3 version to my soundcloud at some point (when I delete other things to make room for it)