This is a very touching piece. I just LOVE violins; they seem to tap into a part of people that conjures up great and sad emotion, like an orphan without any hope or a war victim you pass on the street, the victim being a young child who lost their whole family to guns and hate.
Anyhow, this song makes me think of something fantastical as well, except of something...very different: a video game theme song that plays whenever your character, the clique swordsman hero with an unknown dark past, has an emotionally tense moment with a young woman who has been traveling with you since the start of the game, who turns out to be a princess or something.
Anyhow, as these conversations occur again and again over time, she tells you more about her past, her cultural things, and who you are, of course with other details given by other people and things in your journey that will make what she says lead to conclusions.
Sorry for this idea being so fleshed-out and detailed. My imagination is like that. In short, I see not a hero and a maiden or anything sad like that, but a sad truthful history between your clueless hero and this wonderful friend you are growing closer to as time progresses, but the history you learn makes this friendship grow much like a dainty flower in a rocky wasteland: it's impossible if a strong will isn't applied.