No telling what he thought of it. But as cool as he seemed to be he probably found something to "dig" about Metallica.
Dexter Gordon Influences Metalica
I learned the other day that jazz great Dexter Gordon was the godfather of Metalica Drummer Lars Ulrich. Considering nothing more than musical genres it seems peculiar. Dex would have still been alive to hear the first few Metalica albums. I wonder what he made of that?