It was indeed Pelecanos.
Danny, you can of course borrow the book when I've finished it; it looks quite good. Has a small discography at the back, and the intro lists a few websites devoted to Go Go, which I will list when I have the book about my person.
Coincidentally, as I was catching up on the excellent mr trick and wrongtom podcast this morning, I found they'd had a mini Go Go special and played three tunes in a row - a tilt one, some new one by a guy called something like Arcadar, and The Word by Junkyard Band. All were rather wicked.
Interested in these 3/4 hour jams of essentially the same tune: sounds all entrancing, like Oum Khalthoum or something.