Lyric discussion by Museicalin 

Cover art for Swan Song lyrics by A Fine Frenzy

I'll be the first to comment on this beautiful song. I think she's talking about compromising and / or giving up something that was very valuable to her. At the time it was happening it seemed perfect, beautiful and right, but in hindsight she "regrets it". Love how she uses the analogy of a "swan song" to describe this!