It plays in the background on several episodes. Sometimes the "Sharon" models dance ballet to it.

If it is, in fact, the same Phillip Glass song (or even another song from the album you referred to), I think it would be more than just a coincidence.

If not, my theory is shot to hell. But I still think it would make sense for Starbuck to be a hybrid. And if Phillip Glass is her father, so much the better.

But would he be her human parent or her cylon parent? (Just kidding).