At this point, I have spent an obscene amount of time trying to find a song that follows an autobiographical style but, while my musical preferences are pretty eclectic, I have yet to find anything. Thus, I am somewhat at a loss to stay fully within the realm of autobiographical song... However, what I did find, while not explicitly autobiographical, is filled with social commentary, realism, and most definitely originality. The song "King Rat" by Modest Mouse is largely a commentary on the senseless need for having possessions. The song's lyrics make a mockery of society, comparing humans to carrion birds swarming around worthless things. Brock and the rest of the band bluntly represent an image of society, relying on realism (or perhaps just an authentically pessimistic tone) to bring their music down to Earth. If nothing else, the song, as with most of their music, is strikingly original, but I don't think this is because society was pressuring them; rather, I feel as though the group is working to be authentic despite societal pressures and preexisting musical standards. From an autobiographical sense, some things have to be read between the lines so to speak... Much of Brock's early life consisted of being a "city rat" and existing as somewhat of an outsider to society. Meaning he had little to no income and didn't worry about "important things" like a nice car or paying rent because "county jails they're free." Among all these different interpretations, the song, especially when alongside the video, is heavily against illegal whaling, another commentary on society.
Warning: The video is pretty graphic, involving whales and other marine animals catching, flaying, and eating humans.
https://www.youtube.com/watch?v=Qi7KDOAj4Xo