Twilight can fit into several themes or genres: Romance, Passion, Action, Adventure, Suspense and Fantasy. There are more it could fit into, it depends on your view of the book.
If you are referring to the movies theme music, it is "How I Would Die" as composed by Carter Burwell.
The theme of Twilight is that you chose love over EVERYTHING!
romance
love
The Group called "The Three Suns" had Twilight Time as their theme song. They performed in the 40's.
If you do not know, ask your mom for $15 and go by Twilight.
a different version of the hyrule field/twilight princess theme
Unconditional love.
Vampire Love Story
The first season's theme was by Bernard Herrmann ; the subsequent four seasons had a theme composed by Marius Constant .
yes... go to newmoonmovie.org
Romance and Drama/Thriller.
OK. If you are wondering the answer is Decode by Paramore.