Cormac McCarthy’s The Road is a post-apocalyptic novel which follows a father and son during their journey for survival. Here are a list of songs and the reasons why each relate to a scene or a character in the text.
Metalica's "The Unnamed Feeling"- Given that no one in the text is named, the "unnamed" aspect of the song is important. The song tells of the feelings (unnamed) which a person feels when he or she is close to losing control. Given the trials and tribulations the father faces, one can understandably see where he may feel his continuous struggles are a lost cause.
There are numerous songs about post-apocalyptic life. Here are three:
"As the World Falls Down"- David Bowie
"Beginning of the End"- Rob Zombie
"Doomsday Clock"- Smashing Pumpkins
Mark Willis' "Wish You Were Here" is a country song about a wife who loses her husband in a plane crash. While it is the wife who dies (prior to the beginning of the novel), the song still illustrates the desire of one spouse to be around even after death.
There are numerous songs about war (especially nuclear war, which came about as a result of Hiroshima). Here are a couple suggestions which could be tied to the novel:
"Wooden Ships" by Crosby, Stills, and Nash
"A Hard Rains Gonna Fall" by Bob Dylan