I'm pretty sure "It's a song to you" is actually "Is this all I do?" and occasionally "Is it all I do?"
That makes sense given what the song appears to be about - losing friends. The narrator appears to be lamenting the fact that he is alone, reflected most clearly in the lines "No one knows you, till it's over / You know no one true, till it's over." The narrator feels like he doesn't have anyone to turn to, like he truly isolated. So he's "singing a sad tune."
The heart of the song is him reflecting on all of this - "Is this all I do?" In other words, is all I do push people away? Cut people off so I end up alone? Sink my friendships? It's a powerful, introspective song about isolation and the narrator trying to figure out why he is alone in the world.
I'm pretty sure "It's a song to you" is actually "Is this all I do?" and occasionally "Is it all I do?"
That makes sense given what the song appears to be about - losing friends. The narrator appears to be lamenting the fact that he is alone, reflected most clearly in the lines "No one knows you, till it's over / You know no one true, till it's over." The narrator feels like he doesn't have anyone to turn to, like he truly isolated. So he's "singing a sad tune."
The heart of the song is him reflecting on all of this - "Is this all I do?" In other words, is all I do push people away? Cut people off so I end up alone? Sink my friendships? It's a powerful, introspective song about isolation and the narrator trying to figure out why he is alone in the world.