By Tony Scherman
Updated November 03, 2000 at 05:00 AM EST

Famous in New Orleans, unknown almost everywhere else, Johnny Adams sang with a regret-stained baritone, by turns velvety and clenched. Like many Crescent City compatriots, he mastered virtually every genre: R&B, jazz, gospel, country. Culled from his 10 albums cut for Rounder between ’84 and his death in ’98, the 15 songs on There Is Always One More Time remind us, again, that some of pop’s greatest singers have lived and died far from the publicity mills. A-