Twilight over Thanalan Orchestrion Roll

This recently became available from the moogles for the current event. When I researched I only found references to it coming from the Aquapolis, something I've never done*. However early this morning I completed a Wyvernskin Treasure Map in the Sea of Clouds and it was in the chest.

I don't actively seek out treasure maps, I just do the ones I happen to get, other than the Alexandrite ones.

Anyone Else experience this?

*stepped into it today solo, not thinking it would sync me, big mistake! :D

I knew that some of the maps dropped some of the first floor materials but i didn't expect the music to be in there.

Wonder if that allows for the other songs not included in the event like Calamity Unbound and Unspoken to.