I have to agree with the last comment; the song is about the busy city and Dylan's role in it. I believe in the song he goes on to say while he tours the country's cities he feels like he never has a home because he's constantly moving. In the second verse he relates himself to a homeless man in the line, "singin' songs I knew complete." In the last verse Dylan also refers to making it big and he thinks of a time when another musician's music has touched that city by saying the 6 string is on the wall. The he says in the end the both moved on.
I have to agree with the last comment; the song is about the busy city and Dylan's role in it. I believe in the song he goes on to say while he tours the country's cities he feels like he never has a home because he's constantly moving. In the second verse he relates himself to a homeless man in the line, "singin' songs I knew complete." In the last verse Dylan also refers to making it big and he thinks of a time when another musician's music has touched that city by saying the 6 string is on the wall. The he says in the end the both moved on.