pulse: removed 'plagues' due to me forgetting to sing it & started on the creator's note

wip/pulse.md

@@ -4,6 +4,8 @@
 
 ## Lyrics, in full
 
+第一部。
+
 Surface.   
 The equilibrium of silence between the static magnetic noise, the watery planes, and the optical waves.  
 Blurred and mangled electronic signs over the outbound atmospheric leeway.  
@@ -18,6 +20,7 @@ The noise floor of a receiving environment is the aggregate of all background si
 
 An impulse signal, also referred to as a unit impulse, is defined as a signal with zero value at all points in time except a single instant, at which its value is notionally unbounded, subject to the constraint that its total integrated area equals unity. In practice, true impulse signals cannot be physically produced; they are approximated by short-duration, high-amplitude pulses of sufficient bandwidth. The impulse response of any linear time-invariant system — that is, the output produced when an impulse is presented as input — fully characterises that system's behaviour under any subsequent input. In the absence of any input, a system at rest produces no output and exhibits no properties that distinguish it from any other inactive system. From a single impulse and its measured response, the complete transfer function of the system can be derived.  
 
+第二部。
 
 Subdued sonic scalars vectorise  
 Acoustic aberrations dissipate  
@@ -31,7 +34,9 @@ Deck the shell with a perfect thermocline
 Curtain shut before the Fresnel bights  
 Plasma buildup swells your rover's thighs  
 
-Particulate pressure plagues across a landlocked island  
+第三部。
+
+Particulate pressure across a landlocked island  
 Ultraviolet utilitarian paints every third crag bland  
 Lossy lies lament the ludicrous lawful liberty  
 Siren sounds soaken in the sauna of substantiality  
@@ -126,3 +131,12 @@ siren sounds soaken in the sauna of substantiality
 // E-S-L-U-P:
 essential sentiments leave unbidden perpetually
 ```
+
+## Notes about this song
+
+Some time after witnessing the rover song went locally viral at the second transparent fes I said to myself there will be a third. Almost immediately after that, I was sure the keyword would be 'pulse'. Then it took me several months to figure out the third recursive acronym composition.  
+'pulse' is for a very apparent reason. It's literally the last kairo (original) song. That is, the last song in the last album. I know they had more 2hu released after that but that's a different business, isn't it. It also is a very good word in itself because there is vitality, there is machinery, there is electronics and engineering, all in one package. 
+
+### Trivia
+- In case you didn't notice, the title forms a recursive acronym.
+- Brave Borderer and Dark Adventurer are RN torpedo boats.