When pressed to name the most influential musician of the 20th century, many music historians will name Louis Satchmo Armstrong. Born in New Orleans in 1901 and recording into the 1970s, Armstrong is known as the father of jazz, the one figure most credited with moving the Western world from the age of classical music and Tin Pan Alley pop standards into an exciting new era of swing and hot jazz. Michael Meckna's book is the authoritative reference...