Corresponding with Carlos

Carlos Kleiber (1930-2004) was the greatest conductor of his generation. His reputation is legendary, and yet astonishingly, in his five decades on the podium, he conducted only 89 concerts, some 600 opera performances, and produced 12 recordings. How did someone who worked so little compared to his peers achieve so much?

Between his relatively small output and well-known aversion to publicity, man...