It's rather an understatement when Norbert Slama says, “I’m moving all the time—I have to move all the time.”

As revealed in his recently published memoir, Norbert Slama: How a French Sparrow Conquered the World and Won the Girls with his Accordion, the 89-year-old musician has led an eventful life. He was born in Algiers, North Africa and lived in France, Switzerland, Israel and the United States with voyages to such spots as China, Japan and South America.

These days, his wan...