Henry Mancini (1924-1994) is renowned as the Oscar- and Grammy-winning composer of such timeless standards as "Moon River" and "Days of Wine and Roses," as well as such memorable instrumental themes as "The Pink Panther" and "Baby Elephant Walk." But preceding all of them was the wildly popular theme from Peter Gunn, a television series whose soundtrack won the very first Grammy ever awarded for Album of the Year. Award-winning author...