England/fem!America, or America/fem!England, or another couple if you see it fits. These two are just who I think of.

Broken Bride. Some of you may be familiar with this concept album.

""Broken Bride" is the story of a man (the Traveler) whose wife dies in a car accident in 1989. In deep mourning, he becomes obsessed with finding a way to go back and undo that day. After fifteen years of toil and isolation, he has built a machine to do just that. Miscalculations however, send the Traveler far off course and into an adventure spanning from the Dawn of Time to the Apocalypse. Confronted with unimaginable horrors, he longs only to return to that fateful morning in May, but ultimately finds himself faced with a terrible choice - between saving his wife and saving humanity."

Part I: Broken Bride - http://www.youtube.com/watch?v=PeZrOCgigdo
Save Our City - http://www.youtube.com/watch?v=YkJ2ru68Cx8
Part II: Tonight's The Night - http://www.youtube.com/watch?v=Tpi728NhCpU
Part III: the Lamb And The Dragon - http://www.jango.com/music/Ludo?l=0
Part IV: Morning In May - http://www.jango.com/music/Ludo?l=0