If you know of a way to add it with vanilla mechanics I’ll add it. I have a 20 block surplus on my limit

But seriously though, If that Riff starts, as soon as the main firing sequence begins... (as opposed to using warning sirens etc.)
https://www.youtube.com/watch?v=enTPV_wkKbA

"When I was wondering in the desert, I was searching for the truth,
I heard a choir of angels calling out to me.
I had the feeling that my life would never be the same again.
I turn my face towards the barren sun.

And I know of the pain
That you feel the same as me
And I dream of the rain
As it falls upon the leaves
And the cracks in our lives
Like the cracks upon the ground
They are sealed and are now washed away

You tell me we can start the rain
You tell me that we all can change
You tell me we can find something
To wash the tears away
You tell me we can start the rain
You tell me that we all can change
You tell me we can find something
To wash the tears..."