Well, it could be about the history and the secrets hidden within the old city. The 'blues' part might imply a sense of melancholy or the hardships faced by the people there. It might also involve some kind of mystery or adventure that unfolds in the alleys and old buildings of the city.
I don't know for sure since I haven't read it. But they could be typical characters like a detective trying to solve a crime in the old city, or a local artist who is inspired by the city's charm yet also frustrated by its problems.
Well, it could be centered around the unique world of jugband music within the format of a graphic novel. Maybe it tells the story of a struggling jugband trying to make it big, with all the drama, friendship, and rivalries that come with it. And the 'blues' part might add a touch of melancholy or deep emotional undertones to the narrative, like the characters dealing with hardships while still holding on to their music dreams.
Well, the 'blues man graphic novel' might focus on the character of the blues man. It could tell a story of his origin, how he got into the blues scene. Maybe it shows his relationships with other musicians, his gigs at different places, and the emotions that come with creating and performing blues music. It could also touch on the cultural significance of the blues through his story.
Since I don't know the author or the details of 'Windy City Blues', I can't say who the main character is. It could be a detective, a musician, or just an ordinary person living in the windy city, depending on the genre of the novel.
I don't know for sure as I haven't read it. But it could be the members of the jugband, like the lead singer, the drummer who uses a washtub as a drum, and the guitarist who plays a homemade instrument.
The 'old world blues story' is often about the reminiscences, perhaps the sorrows and joys of the old world. It could be about historical events, cultural traditions, or the lives of people in the past.
It could be the musicians who were part of creating and spreading the blues music in the old world. They are the main characters as they are the ones who pour their emotions and experiences into the music.