An extraordinary prodigy of Mozartean abilities, Felix Mendelssohn Bartholdy was a distinguished composer and conductor, a legendary pianist and organist, and an accomplished painter and classicist. Lionized in his lifetime, he is best remembered today for several staples of the concert hall and for such popular music as "The Wedding March" and "Hark, the Herald Angels Sing".

Now, in the first major Mendelssohn biography to appear in decades, R. Larry Todd offers a remarkably fresh account o...