So, we have a lady in red playing a red piano with a clear top. She gets up, and starts "flirting" with a man in white before she exits stage and the man in white goes to center stage, with a clock ticking down to midnight before being engulfed in flames.

The mechanisms for evil (red piano with a clear top) are plainly revealed, and the "good" people (man in white) have been flirting with the agent of evil (lady in red) while this is revealed. Evil exits while good takes center stage, with the clock ticking down to midnight before being engulfed (change of the times, destruction of the old).

Might be a warning (stop flirting with clear evil while there is still time, lest you follow in their removal/destruction). Just my thoughts.