It would be difficult to think of a more remarkable father-and-son relationship in Western music history than that of Alessandro and Domenico Scarlatti. The complex and precarious psychology of this relationship has been discussed with brilliant insight by Roberto Pagan in his book Alessandro and Domenico Scarlatti: Two Lives in One. In musical terms the unique aspect is that both father and son must be rated as of equal genius and originality. The creative impact of each of them is individual, highly intellectual, and above all communicative. The music of Domenico is of course much better known today than his father's - a reversal of the situation in their lifetimes, reflecting the different survival paths of the genres to which each devoted his creative energies.