Norbert Congrega just wants us to smile. That's not too much to ask for, is it? Still, the septuagenarian banjo player does live in a sleepy part of southern France rather than this politically volatile neck of the global woods. So, perhaps, it is easier said than done.Congrega is a member of the charmingly named Les Haricots Rouges jazz combo which is due to appear at the New Orleans Festival at the Tel Aviv Museum November 27-29, as part of a nationwide tour. Stylistically, the band's accent