One has to hand it to the Japanese for caring for the United States jazz tradition in all its guises better than people in the U.S. do. Consider this 1979 album by Eric Gale. While the funky rubric of soul-jazz was deeply informed by disco in the late '70s, that didn't mean the music being created was without considerable merit. This disc is a case in point – and it cannot be had in the United States. Teamed with the funk-jazz mafia of Richard Tee, Harvey Mason, Steve Gadd, Ralph MacDonald, Dave Grusin, and Grover Washington, Jr., as well as Charles Earland and Idris Muhammad on the stellar groove jam "Trio" (the album's highlight), Gale offers up six midrange tunes that run the gamut from deeply funky…