When a critic pointed out to Brahms that the finale theme in his First Symphony was remarkably similar to the Ode to Joy theme in Beethoven's Ninth, he is said to have replied: "Yes indeed, and what's really remarkable is that every jackass notices this at once." Not every musical borrowing is quite so obvious; but the listener who does perceive one is always left wondering: what does the similarity mean? In this illuminating book Christopher Reynolds gives us answers to that complex question.

Reynolds identifies specific borrowings or allusions in a wide range of nineteenth-century...