By Josef Woodard
Updated April 30, 1999 at 04:00 AM EDT

What happens when two living jazz-guitar legends from different generations get together? In Jim Hall & Pat Metheny, plenty: Influential, fresh-minded vet Jim Hall and his more famous protege Pat Metheny come up with a spare but rich duet that reveals their commonalities and distinctions. You get more than your money’s worth with the friendly, clean-toned, and adventurous sprawl of 17 tracks — reconsidered standards, lovely originals, and a few improv snippets. A-