"Together or Not at All - The Song of Amy and Rory" was a musical piece composed by Murray Gold.
It was first used in Series 7 premiere episode Asylum of the Daleks, during companions Amy Pond and Rory Williams' emotional argument. However, the piece is most well-known for being used during the episode The Angels Take Manhattan, as Amy and Rory sacrifice themselves to destroy the Weeping Angels.
The piece is featured in Murray Gold's soundtrack Doctor Who - Series 7.