Music: Change of Diet

I got plenty o' nuttin'

And nuttin's plenty for me . . .

For an ambitious singer who got his start 14 years ago (as Porgy in Gershwin's Porgy and Bess) with nuttin' very big except a rich, rangy baritone voice, tall, handsome Todd Duncan was doing all right. At 46, with only a few grey hairs in his head, he could lean back with a satisfied smile and say: "I've got a nice house, a good wife, a fine son, and a brand new grandson. I know where I'm going. I can tell you where I'll be right up to 1951."

Last week,...