Lovers by Shigeru Umebayashi.

There just seems to be something about the stringed instruments harmonizing with the singer's voice that creates such a sensation and emotion of romantic longing... A longing so powerful, so strong and arresting, yet, its passion cannot be felt unless they pass into the cold embrace of death, to eternity. More than anything, it seems to be the continual strain felt through the voice and strings that have me pass into sorrowful feelings of loss and fated love.