Orca post and related CSS changes

content/insanity.md

@@ -25,3 +25,55 @@ This is the result of deciding to mess around with LMMS, a distorted Minecraft a
 I made an anvil melody of sorts and Vlams added a drum sample loop and a few synthesizers.
 
 {{< audio src=/audio/aaaaanvil.flac audio=flac >}}
+
+# Orca
+
+Some [Orca experiments.](/rambles/orca/)
+
+## plinkinator
+
+{{< start-details summary="Orca source" >}}
+```orca
+..................
+..nVC.............
+..................
+5U9..Vn..4U9..Vn..
+.*:04C....*:03C...
+..................
+3U5..Vn...........
+..:05C............
+..................
+3U8..Vn...........
+.*:06C............
+..................
+```
+{{< end-details >}}
+
+### First result
+
+{{< audio src=/audio/orca/plinkinator.flac audio=flac >}}
+
+### Later variant
+{{< audio src="/audio/orca/varied_plinkinator.flac" audio=flac >}}
+
+## Shepard tone
+
+{{< start-details summary="Orca source" >}}
+```orca
+.C8C7........
+.1.67TABCDEFG
+.J.3XG.......
+.18T1234567..
+...2.........
+D1.J.........
+*:02G.2......
+```
+{{< end-details >}}
+
+### Climb
+{{< audio src="/audio/orca/climb.flac" audio=flac >}}
+
+### Fall
+
+Same as 'climb' but with the note and octave loops reversed.
+{{< audio src="/audio/orca/fall.flac" audio=flac >}}

content/rambles/orca.md

@@ -0,0 +1,115 @@
+---
+title: "Orca"
+date: "2023-09-09T15:59:21+02:00"
+author: "$HUMANOID"
+tags: ["orca", "audio"]
+description: "Rambles on Experiments with Orca"
+---
+
+# Brainy Music
+
+There's something I really like about the idea of mathematically and
+programmatically making music. As a result, I've harboured an interest in
+trackers for quite some time, but never got into attempting to actually use one.
+In a similar vein, I've looked at [Hundred Rabbits'
+Orca](https://100r.co/site/orca.html) every now and then, but once again
+couldn't be bothered to figure it out.
+
+That was until recently, due to unrelated circumstances, I got access to Ableton
+Live. This piqued my interest in Orca again and I decided to grit my teeth and
+learn the syntax. The result is that I have now produced some blobs of
+characters that -- when paired with the right software -- produce some really
+interesting noises.
+
+I won't go into detail on how everything works as the documentation is easy
+enough to read. The syntax is the biggest hurdle.
+
+# Patterns
+
+My favourite operator so far is `U` -- the eUclidian rhythm operator. It takes a
+left and right argument -- lets refer to them as `X` and `Y` respectively -- and
+then attempts to produce a bang -- that is to say pulse on `X` out of `Y`
+frames. So `3U8` attempts to produce 3 equally spaced bangs in 8 frames, which
+will fail. As a result, it spaces the bangs as close to equal as possible. This
+can lead to some really interesting patterns and rhythms.
+
+Here's an example of when I wrapped my head around it for the first time:
+
+{{< audio src=/audio/orca/plinkinator.flac audio=flac >}}
+
+And the Orca code:
+
+```orca
+..nVC...........
+................
+5U9..Vn..4U9..Vn
+.*:04C....*:03C.
+................
+3U5..Vn.........
+..:05C..........
+................
+3U8..Vn.........
+.*:06C..........
+```
+
+Here's a variant with a different synth and where I've been messing around with
+the note being played while recording:
+
+{{< audio src="/audio/orca/varied_plinkinator.flac" audio=flac >}}
+
+# Numbers and stuff
+
+Because I suck at basic calculus and have been half arsedly learning BQN, I
+wrote a function to get a list of numbers to produce potentially interesting
+patterns for the `U` operator:
+
+```bqn
+OrcaList ← {1↕(⊢⋈¨𝕩⊸÷)1+↕𝕩}
+```
+
+This function requires a number and returns a list of all possible divisions
+from that one up up to the given number.
+
+```bqn
+   Orcalist 9
+┌─                          
+╵ ⟨ 1 9 ⟩                   
+  ⟨ 2 4.5 ⟩                 
+  ⟨ 3 3 ⟩                   
+  ⟨ 4 2.25 ⟩                
+  ⟨ 5 1.8 ⟩                 
+  ⟨ 6 1.5 ⟩                 
+  ⟨ 7 1.2857142857142858 ⟩  
+  ⟨ 8 1.125 ⟩               
+  ⟨ 9 1 ⟩                   
+                           ┘
+```
+
+Rough Haskell equivalent for readability's sake:
+```haskell
+orcaList x = map ((,) <$> id <*> (x/)) [1..x]
+```
+
+# Recording from LMMS
+
+Since LMMS puts whatever MIDI notes it gets into a grid (by default at least),
+most of the intricacies of timing are lost. As a result, when using LMMS, I use
+`pw-record` to record the live audio output with timing still intact.
+
+This audio journey has also lead me to appreciate Pipewire a lot more. In that
+regard, I have the following audio stack on NixOS:
+```nix
+{ config, ... }: {
+  sound.enable = true;
+  hardware.pulseaudio.enable = false;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    jack.enable = true;
+  };
+}
+```
+
+And I use `qwpgraph` as patchbay.

themes/vugo

@@ -1 +1 @@
-Subproject commit 7c5857cba71b3ce9d926a5e0c35e1e8ae2032d03
+Subproject commit 8a0e6fc8f845ea5cf6115a9100893e82e64cc3f3