I find it interesting that both BOS and YBTTC have the same three-note hook that was very common in the eighties. If the song is in E minor (like these two songs are), the notes are g, f sharp, d. "Powers that be" by Roger Waters has this, even in the same rhythm as BOS. For those who don't know about musical notes, I mean the "you belong to the city"-melody, which has the same three notes as the "Boys of summer" instrumental hook. Somehow those three notes together, with the minor chord in the background, sum up the eigthies.