It's from the original audio edition of his seminal 1984 novel, which is sadly no longer available, though it's easy enough to find bootlegs online.

Though the music is kinda cheesy, Gibson reads his own work beautifully — this is exactly the way I hear that book in my head when I re-read it. It's a pity that there's a (somewhat sterile) new edition that precludes re-releasing the original.

(via Kadrey)

(Image: William Gibson, painted portrait P1020049, thierry ehrmann, CC-BY)