Danny Elfman gave a few comments regarding his unique score for Dark Shadows, which seems to be something quite different from many other scores he has composed for his long-time collaborator, Tim Burton:
"Tim had some specific ideas about the music on Dark Shadows," says Elfman. "I knew that the bigger dramatic scenes would be played in a rather grand theatrical manner, but the real treat was tapping into the retro pallet Tim had imagined. He wanted something that payed homage to both the original TV series and other '70s horror genres as well. For that we kept it minimal, eerie, and atmospheric with only electronics and a few solo instruments carrying the melodies."
ComicBookMovie.com provided the information, but beware of SPOILERS in the link!