I was struck by some of the lyrics to Gaeta’s song in the last episode of Galactica, thinking that they were likely to be significant in the same way that All Along the WatchTower became. I’ve yet to try and put the lyrics of the latter into context of my plot speculation, but I think that Gaeta’s song is far more likely to contain clues (though they will probably be more obvious in hindsight rather than have predictive utility).
Now, it seems that Galactica composer Bear McCreary has spilled some beans on his galactica blog and confirmed that Gaeta’s song does indeed have direct relevance to the storyline. There are plenty of spoilers for the episode, but also a fascinating discussion of how the song took shape and how they used it to narrate the plot forward – and emphasize the ending.
All in all, Gaeta is getting a lot of attention all of a sudden. That seems to support my theory.