"It is a] fully illuminated story that Richard Taruskin, in the path-breaking essays collected here, unfolds around Modest Musorgsky, Russia's greatest national composer. . . . Taruskin's] tour de force comes with a frontal attack on all the Soviet-bred truisms that for a century have refashioned Musorgsky from what the evidence suggests he was--an aristocrat with an early clinical interest in true-to-life musical portraiture and a later penchant...