Pete Seeger's "Turn, Turn, Turn", Paul Simon's "American Tune," Ray Davies' "Days"
OK, I'm cheating and suggesting three but since there seems to be an organized campaign of dozens of people for one song, and I assume you're not going to want to play one song over and over again, I hope you'll forgive me and consider them all.
I was listening to the Newport Folk Festival on NPR Sunday and "Turn Turn Turn" was one of the closing songs when many of the acts got together for an encore. The lyrics captured for the range of emotions and experiences sparked by September 11 and its aftermath. We've had our time of hate and war and I would like to think that the final line, "a time for peace, I swear it's not too late" is a point we can reach 10 years after.
Written long before September 11, "American Tune" has prescient lyrics: "don't know a soul who's not been battered, don't have a friend who feels at ease, don't know a dream that's not been shattered and driven to its knees"
while also pointing out that "we've lived so well so long" and "you can't be forever blessed."
"Days" is about how you never really lose someone you love--that person lives on in your memories, your thoughts, your dreams.
I'd also like to ditto someone's suggestion of "I'll Be Seeing You" which is thematically similar to "Days"--its poignant lyrics ran through my head frequently in the post-Sept. 11 days.
Andrea