There's been a power shift in Borca.
Twenty years ago, a court musician enacted a coup d'etat, deposing Ivan and Ivanna Brindisi and seizing their power over the fabric of Borca's reality. Known only as The Maestro, he has used his newfound power to... enact a functional democratic republic. Penning acts that fund public education, sanitation, and welfare, the citizens and nobles alike are fond of their new ruler, who behaves less like a ruler and more like a public servant.
If it comes with the new reality that songs are prone to break out in times of strong emotion, well... you get used to it.