If the game is trying to give a feel that the old world was stuck in the 50's culture and mindset, then I don't think industrial metal, prog rock or rap core from today would be that suitable. I mean, we have greasers... that rap and/or produced electronic sample rock music?
I'd say, if you wanted music that were supposed to be something from between 1950 to 2077, it should be original music written for the game. Because if the game was supposed to have everything that is 1950's but more than hundred years later, but the music would be different? But why just stop at the rock music, why no Lady GaGa or Justin Bieber, that [censored] is so popular and modern today aswell. I mean, why wouldn't you want to listen to Poker Face at the Gomorrah?
http://www.youtube.com/watch?v=F89zmxC2yIg, you think this song is... "cookie cutter perfect" for Fallout?
I wouldn't mind radio stations to choose from. If some played pop fine. I can tune in to what I want to hear.
But to say culture was stuck 1950 is a bit double edged sword. Some things I can understand being stuck, and others I cannot.
Creativity being one that would be impossible to keep stagnant, especially with the artists we know would have existed pre-divergence.
There are several things in fo 1, 2, 3 that cannot even be explained with SCIENCE!
For example, G11. Bullpup weapons. I would say even the nuclear weapons used in the great war couldn't have been conceived. Missile platforms. 1945 nuclear missiles were dropped from bombers. The long range communications and sats. The idea for sats for communications would have been an idea from late 70s to 80s.
So all these advances, some questionable even with science, but people still watch leave it to beaver and listen to sinatra
But I'm sure you nothing to worry about and it will still be 40s and 50s tunes, but a guy can dream.
Just to add. All founding members of Rolling Stones, Beatles, Jim Morrison, were born before 1945. Electric guitar invented 30s and first Gibson was 36.
I dunno how you can stop the evolution of music with what was already in place. How can creativity be diverged?