Just now getting around to opening this one. Disc 1 is pretty cool actually, lots of Miles on both trumpet and keys, lots of blues with Miles playing altered changes, J.J.!!! Nothing (except for the opening cut) obviously intended as anything other than jamming.
On to the rest tomorrow. But so far, so good. Miles playing chords is like Wynton Kelly coming back to life after woodshedding everything that he missed that he could have used.