I was sort-of daydreaming...

so I don't quite recall how much there is...

but, well, Here is a lovely recording

what struck me most about it is the drums. They can particularly be heard around the final Amen, but there's somewhat more.

Here's another I just can't get out of my head at the moment

I blame Robert Reilly.

---

Over the summer, I was contemplating an arrangement of things like the following: start with a special square
$$ \begin{array}{ccc}
A & \to & B \\
\downarrow & \ulcorner & \downarrow \\
C & \to & P
\end{array}
$$
There is then some delightful nonsense which guarantees the following special squares
$$
\begin{array}{cccccc}
& E & \to & F & \to & *\\
& \downarrow & \lrcorner & \downarrow & \lrcorner & \downarrow \\
& A & \to & B & \to & P \\
E & \to & G & \to & * \\
\downarrow & \lrcorner & \downarrow & \lrcorner & \downarrow \\
A & \to & C & \to & P \\
& & & E & \to & F \\
& & & \downarrow & \ulcorner & \downarrow \\
& & & G & \to & *
\end{array}$$
That last one is the really-special one, because of where the $*$ sits in it. It makes $E$ rather simpler than it otherwise might have been... But that's a story for another day.