I think this song has to do with writer's block, hence the line 'they've stolen all the magic and turned my melodies'. There is also a debate at the beginning of the song that has to do with what a lot of musicians go through. Whether to continue in the music industry or not, because their songs have to be changed ('turned') to make them more marketable. He is probably debating whether he is still able to get his message across with so many limitations on his art by the major labels.
I think this song has to do with writer's block, hence the line 'they've stolen all the magic and turned my melodies'. There is also a debate at the beginning of the song that has to do with what a lot of musicians go through. Whether to continue in the music industry or not, because their songs have to be changed ('turned') to make them more marketable. He is probably debating whether he is still able to get his message across with so many limitations on his art by the major labels.