The fun thing about being loosely inspired by songs is, usually, none of your players will ever get the references.

For example, the setting of "Home" from The Book of Mirrors - a totalitarian, insular city floating through the air on giant engines nobody knows how to build anymore - is inspired by two lines from the chorus of The Midnight's Brooklyn:

Floating empire
held up by fraying wire

That's all you need to spin off a full world and disastrous situation for the players. Just overthink a somewhat evocative sentence.

This verse also defined a bunch of plot beats I anticipated people hitting:

I never placed too much faith in the stars
I never placed too much faith in my heart
But the siren call of the chandelier city
And inch by inch, we're breaking apart
As we're rising through the dark
From the sky, I bet the lights look pretty

Then in Binary Siren, well I got the name from their other song "Neon Medusa" (which, funnily enough actually describes a Siren and a Minotaur but never a Medusa), but the character of the binary siren herself was more inspired by the song "Good In Red", a call to action to literally slay the devils keeping a girl down.

The party never even spoke to the siren though lol so that didn't matter :D