[Polka music sounds. In a minor key faint with distance.]
We danced the Varsouviana! Suddenly in the middle of the dance the boy I had married broke away from me and ran out of the casino. A few moments later – a shot!
[The polka stops abruptly.]
[Blanche rises stiffly. Then, the polka resumes in a major key.]

– Tennessee Williams

A Streetcar Named Desire, Scene 6. The polka music of the Varsouviana often comes back to haunt Blanche, reminding her of the night she danced to it with her young husband before he shot himself. It represent the guilt she feels over Allan Gray’s suicide.