Time: Any
Frequency: Always
Area and coordinates: Ul'dah - Steps of Nald X: 8.4 Y: 8.9

I've completed the MSQ, "The Ul'dahn Envoy," many times. This is the quest where you travel to the city-states and here the leaders speak. I've noticed that the music playing during the cutscenes continues to play even after leaving the cutscene. This may very well be intentional, but just figured to report it in case. I'm unsure, but imagine that the other envoy quests (Out of Gridania/Limsa Lominsa) have this as well.

1. Accept the MSQ "The Ul'dahn Envoy" from Raubahn.
2. Travel to each city state and listen to the leaders speak (i.e. the cutscenes).
3. Make note that after the cutscenes are completed, the music that played during them continues.
4. This continues until you leave the zone.