It means a possibility of two things to me. I think it may be introspective and he is looking for himself.
"been looking in churches" --looking for himself in religion
"been looking in bars" --been looking for himself at the bottom of a bottle
"...reddened and left too" --thought he found himself but as things changed he realized he hadn't
"music and song" --where he's looking now, maybe.
Otherwise, I think it could potentially mean he's pining for his love.
Probably my favorite GLS song.
It means a possibility of two things to me. I think it may be introspective and he is looking for himself. "been looking in churches" --looking for himself in religion "been looking in bars" --been looking for himself at the bottom of a bottle "...reddened and left too" --thought he found himself but as things changed he realized he hadn't "music and song" --where he's looking now, maybe.
Otherwise, I think it could potentially mean he's pining for his love.