Place it as the closing beat of an edit, after the spoken vow or verdict it seals. Build toward it with a low background music loop underneath the speech, then let this be the final hit with nothing placed after it in the sequence.
O tym dźwięku
It is a short sung excerpt of the Latin phrase in saecula saeculorum, the closing words meaning forever and ever. Delivered as a chant, it feels solemn and timeless rather than comic, giving listeners a sense of ceremony, finality and something far larger than the moment it interrupts.