Tchaikovsky's great "Swan Lake" ballet, has a lot of the type of music you are looking for, I would think.
It has a dark, mysterious setting, and was very popular with composers who scored the old "Dracula" and "Frankenstein" films genre. You could almost say that one of its principal melodies, was Dracula's theme song.
You can listen to many excerpts from it, on You Tube.
Good luck,
Alberich
|