In A Streetcar Named Desire What is the blue piano?

In "A Streetcar Named Desire," the blue piano serves as a significant symbol of emotion and longing. Its music reflects the characters' inner lives, particularly Blanche DuBois's nostalgic memories and desire for a more refined past. The piano underscores the play's themes of desire, loss, and the clash between reality and illusion, providing an auditory backdrop to the tensions among the characters. Ultimately, it represents both the beauty and tragedy of their experiences.