At first, you can interpret the girl's "hearing violins" as something negative. While the men of the market are surely "bad", is it any better if the girl retreats from reality (through closing her eyes). In fact, perhaps her distancing from the world is what they insult her for in the first place. The world may be evil, but it does you no good to run away from it and hear violins which aren't there.
Later, when the boy hears violins as well, it proves that the girl isn't crazy. Someone else thinks like her, and whatever the violins represent does exist in the world since he acknowledges it.
But it doesn't end there. When taken alone, their worldviews are incomplete in different ways. For the girl, it's summarized in "they say the most horrible things". While its true that horrible deeds are done, she thinks that all actions are horrible. For the boy, it's summarized in "they break the most beautiful things. The truth here is that there is beauty in the world, but he thinks that it's hopeless since they are always broken.
But they meet, their worldviews complement each other: "you say the most beautiful things". The girl learns that there is good in the world, apart from her. While the song doesn't say what the boy's reaction to this is, I'm sure that he learns that there's sill hope to fix what's broken.
At first, you can interpret the girl's "hearing violins" as something negative. While the men of the market are surely "bad", is it any better if the girl retreats from reality (through closing her eyes). In fact, perhaps her distancing from the world is what they insult her for in the first place. The world may be evil, but it does you no good to run away from it and hear violins which aren't there.
Later, when the boy hears violins as well, it proves that the girl isn't crazy. Someone else thinks like her, and whatever the violins represent does exist in the world since he acknowledges it.
But it doesn't end there. When taken alone, their worldviews are incomplete in different ways. For the girl, it's summarized in "they say the most horrible things". While its true that horrible deeds are done, she thinks that all actions are horrible. For the boy, it's summarized in "they break the most beautiful things. The truth here is that there is beauty in the world, but he thinks that it's hopeless since they are always broken.
But they meet, their worldviews complement each other: "you say the most beautiful things". The girl learns that there is good in the world, apart from her. While the song doesn't say what the boy's reaction to this is, I'm sure that he learns that there's sill hope to fix what's broken.