Ride of the Valkyries

The Ride of the Valkyries is the music heard when the rockets launch at the REPCONN test site at the end of the quest, Come Fly With Me. It can also be heard on Classical Radio in Fallout 4.

Background
"The Ride of the Valkyries" is not the actual title of the music, but is the popular name for the beginning of Act III of Die Walküre, the opera by Richard Wagner. This song is also featured in a popularly known scene from the film, Apocalypse Now.

Video
Ride of the Valkyries

La Chevauchée des Valkyries