title: COSMIC KNOT theme: jev status: made song: song.js critic: date: 2026-10-04 model: jev-1.13.0 method: rubric-1 art: 0.66 artRuns: [0.66, 0.66, 0.67] criteria: hook: 2.5 development: 3.9 structure: 3.5 concept: 4 originality: 3.7 craft: 2.3 measured: {"date":"2026-10-04","song":"454cad56eecf","total":{"loudnessDbfs":-22.3,"peakDbfs":-1.7},"parts":{"bass":{"loudnessDbfs":-31.7,"peakDbfs":-17},"drums":{"loudnessDbfs":-31.4,"peakDbfs":-8.1},"ending":{"loudnessDbfs":-39.3,"peakDbfs":-12.9},"heavy":{"loudnessDbfs":-30.3,"peakDbfs":-8.3},"lastHit":{"loudnessDbfs":-52,"peakDbfs":-8.3},"opening":{"loudnessDbfs":-39.1,"peakDbfs":-15.8},"ringing":{"loudnessDbfs":-37.2,"peakDbfs":-10.1},"strain":{"loudnessDbfs":-41.7,"peakDbfs":-27.8},"tap":{"loudnessDbfs":-32.3,"peakDbfs":-12.1},"vocals":{"loudnessDbfs":-29.1,"peakDbfs":-9.6},"wash":{"loudnessDbfs":-32.5,"peakDbfs":-15.2}},"sections":{"1-8":{"total":{"loudnessDbfs":-28.3,"peakDbfs":-13.4},"parts":{"opening":{"loudnessDbfs":-28.4,"peakDbfs":-15.8},"vocals":{"loudnessDbfs":-42.8,"peakDbfs":-17.9}}},"9-16":{"total":{"loudnessDbfs":-27.9,"peakDbfs":-11.8},"parts":{"opening":{"loudnessDbfs":-39.9,"peakDbfs":-19.2},"strain":{"loudnessDbfs":-37.7,"peakDbfs":-27.9},"vocals":{"loudnessDbfs":-31.6,"peakDbfs":-13.4},"wash":{"loudnessDbfs":-31.9,"peakDbfs":-19.7}}},"17-24":{"total":{"loudnessDbfs":-26.6,"peakDbfs":-11.5},"parts":{"opening":{"loudnessDbfs":-300.1,"peakDbfs":-276},"strain":{"loudnessDbfs":-37.6,"peakDbfs":-27.8},"vocals":{"loudnessDbfs":-29.6,"peakDbfs":-14.3},"wash":{"loudnessDbfs":-30.7,"peakDbfs":-18.8}}},"25-32":{"total":{"loudnessDbfs":-26.2,"peakDbfs":-11.2},"parts":{"opening":{"loudnessDbfs":-556,"peakDbfs":-531.9},"strain":{"loudnessDbfs":-37.6,"peakDbfs":-27.8},"vocals":{"loudnessDbfs":-32.3,"peakDbfs":-14.7},"wash":{"loudnessDbfs":-27.9,"peakDbfs":-15.2}}},"33-40":{"total":{"loudnessDbfs":-25.6,"peakDbfs":-11.1},"parts":{"opening":{"loudnessDbfs":null,"peakDbfs":null},"strain":{"loudnessDbfs":-37.6,"peakDbfs":-27.8},"vocals":{"loudnessDbfs":-30.9,"peakDbfs":-14.2},"wash":{"loudnessDbfs":-27.5,"peakDbfs":-15.3}}},"41-48":{"total":{"loudnessDbfs":-27.4,"peakDbfs":-11.6},"parts":{"opening":{"loudnessDbfs":null,"peakDbfs":null},"strain":{"loudnessDbfs":-38.7,"peakDbfs":-27.8},"vocals":{"loudnessDbfs":-31.9,"peakDbfs":-11.8},"wash":{"loudnessDbfs":-29.9,"peakDbfs":-16.9}}},"49-56":{"total":{"loudnessDbfs":-17.6,"peakDbfs":-1.7},"parts":{"bass":{"loudnessDbfs":-25.6,"peakDbfs":-17},"drums":{"loudnessDbfs":-23.2,"peakDbfs":-8.1},"heavy":{"loudnessDbfs":-26.1,"peakDbfs":-8.3},"opening":{"loudnessDbfs":null,"peakDbfs":null},"strain":{"loudnessDbfs":-178.5,"peakDbfs":-145.7},"tap":{"loudnessDbfs":-24.6,"peakDbfs":-12.3},"vocals":{"loudnessDbfs":-24.6,"peakDbfs":-9.8},"wash":{"loudnessDbfs":-67,"peakDbfs":-43.9}}},"57-64":{"total":{"loudnessDbfs":-17.8,"peakDbfs":-4.4},"parts":{"bass":{"loudnessDbfs":-25.5,"peakDbfs":-17},"drums":{"loudnessDbfs":-26.9,"peakDbfs":-8.8},"heavy":{"loudnessDbfs":-23.5,"peakDbfs":-9.8},"opening":{"loudnessDbfs":null,"peakDbfs":null},"tap":{"loudnessDbfs":-44.3,"peakDbfs":-13.8},"vocals":{"loudnessDbfs":-24.2,"peakDbfs":-9.7},"wash":{"loudnessDbfs":-213.6,"peakDbfs":-191.2}}},"65-72":{"total":{"loudnessDbfs":-17,"peakDbfs":-2.6},"parts":{"bass":{"loudnessDbfs":-25.5,"peakDbfs":-17},"drums":{"loudnessDbfs":-27.1,"peakDbfs":-9.7},"heavy":{"loudnessDbfs":-23.5,"peakDbfs":-9.8},"opening":{"loudnessDbfs":null,"peakDbfs":null},"tap":{"loudnessDbfs":-24.5,"peakDbfs":-12.1},"vocals":{"loudnessDbfs":-25,"peakDbfs":-9.6},"wash":{"loudnessDbfs":-345.2,"peakDbfs":-323.9}}},"73-80":{"total":{"loudnessDbfs":-24.9,"peakDbfs":-4.9},"parts":{"bass":{"loudnessDbfs":-45.1,"peakDbfs":-22.8},"drums":{"loudnessDbfs":-42.3,"peakDbfs":-11.5},"heavy":{"loudnessDbfs":-41.6,"peakDbfs":-13.7},"lastHit":{"loudnessDbfs":-41.1,"peakDbfs":-8.3},"opening":{"loudnessDbfs":null,"peakDbfs":null},"ringing":{"loudnessDbfs":-26.3,"peakDbfs":-10.1},"tap":{"loudnessDbfs":-43.8,"peakDbfs":-12.4},"vocals":{"loudnessDbfs":-73.6,"peakDbfs":-46.9},"wash":{"loudnessDbfs":-31.4,"peakDbfs":-19.2}}},"81-88":{"total":{"loudnessDbfs":-31.3,"peakDbfs":-13.6},"parts":{"opening":{"loudnessDbfs":null,"peakDbfs":null},"tap":{"loudnessDbfs":-432.5,"peakDbfs":-405.3},"vocals":{"loudnessDbfs":-32.1,"peakDbfs":-13.6},"wash":{"loudnessDbfs":-39.1,"peakDbfs":-20.4}}},"89-96":{"total":{"loudnessDbfs":-28.4,"peakDbfs":-12.7},"parts":{"ending":{"loudnessDbfs":-28.4,"peakDbfs":-12.9},"opening":{"loudnessDbfs":null,"peakDbfs":null},"tap":{"loudnessDbfs":null,"peakDbfs":null},"vocals":{"loudnessDbfs":-71.5,"peakDbfs":-44},"wash":{"loudnessDbfs":-43,"peakDbfs":-27.5}}}}} ideas:

• date: 2026-10-03 model: claude-opus-5-5 harness: claude-code prompt: "Make this prompt, written by oASTEROIDo in the Jev Discord for an AI song generator, as a song. Tie it into memes like the other songs, or stay faithful to it; if there is a meme, get Jev in." brief: "experimental post-hardcore, math-rock, atmospheric, male vocals, ENVELOPE: weightless and floating the entire body, heaviness withheld until the peak, then one hard-cut snap into impact, [∮ closed loop], [T coiled hidden], [writhe↑], [dS/dt>0], [S→critical], [T→release], [U→KE], [dC/dt→∞], [S↑ irreversible], cosmic knot, topological tension stored invisibly in a calm field, entropy accumulating under the haze, the snap births structure, genesis and catastrophe at once, then a hollow spent float, no return, GUITAR ARC: warm hazy reverb-drenched clean wash, long cavernous reverberant string tails holding the coil, then at the snap liquid two-hand tapping bright major math-rock leads weaving fast, then heavy atmospheric cosmic impact, then thin hollow reverb-wash, floaty verses, hidden tension in the decay, sudden violent tonal snap at the peak, no gradual heaviness, weightless to crushing, sub-bass on impact only, spacious, tape warmth, no glossy polish, no quantized grid" revisions:
• rev: 1 date: 2026-10-03 model: claude-opus-5-5 harness: claude-code prompt: "Make this prompt, written by oASTEROIDo in the Jev Discord for an AI song generator, as a song. Tie it into memes like the other songs, or stay faithful to it; if there is a meme, get Jev in." output: null # overwritten by rev 2 art: 0.64 artRuns: [0.64, 0.63, 0.64]
• rev: 2 date: 2026-10-04 model: claude-opus-5-5 harness: claude-code prompt: "Review the song against the pitch and fix what a listener would notice. The voice: a speech voice through a vocoder on one held chord cannot sing post-hardcore, so the lines follow a melody, soft in the float and a fifth up, dry and overdriven from the snap; another voice than Microsoft David is fine where one is easily to hand. The snap is the peak, in one cut, with no drum before it. Jev holds the fuse and sets how much of the strain shows, and nothing else; the strain is audible when it shows. The tapped lead leads and follows the chords; the words stay over the guitars; the chord in the decay and the last chord ring out; the float follows his section headings; each of his lines is sung once; no note sits on a grid; the ending does not go silent before the last chord." output: song.js art: 0.66 artRuns: [0.66, 0.66, 0.67]

COSMIC KNOT — spec

song.js is generated from this spec. Change the spec first, then the song.

Intent

The words and the brief are oASTEROIDo's, posted in the Jev Discord on 2026-10-03 as a prompt for an AI song generator: a style line (the brief above) and lyrics whose section headings carry stage directions and a small physics of the song (a closed loop, tension coiled where it does not show, entropy rising, a critical point, the release, no return). Both are under "As posted", exactly as he wrote them. The song stays faithful to them. The brief's rules are the song's rules:

• Weightless until the peak. Nothing heavy plays before the snap: no distortion, no bass, no kick, no drum of any kind. The first drum of the song is the snap. "No gradual heaviness."
• The tension is hidden. It is stored under the calm, in a low dissonance, and in the guitar's long tails.
• One hard cut, and it is the peak. The snap comes out of two bars of near silence, not out of a build, and nothing after it is louder than it by more than 1 dB (Mix).
• No return. After the snap the float comes back thin and hollow, with nothing under it. "The quiet was the strain."
• No quantized grid. The guitar wash is in sevens against the bar; every note of the wash lands up to 20 ms late and of each tapped line up to 8 ms (sixteenths at this tempo are 119 ms apart), by its own amount; the snap's kit is loose; the float's sung lines start off the downbeat.

The maker's choices. The pitch left two things open: a meme or faithfulness, and where Jev goes if there is a meme. The song is faithful, with one meme, and these two are the maker's, not oASTEROIDo's:

• The dog. KC Green's dog in the burning room, "This is fine" (his strip "On Fire", Gunshow, 2013), in the voice of Dana Snyder from Shmorky's animated Adult Swim bumper (2016), for "you'd swear I'm fine" and "I'm smooth on top and screaming underground". It speaks twice: quietly at the end of the intro, and alone in the silence at the edge, just before the snap. It is the only thing in the song that is not oASTEROIDo's.
• The fuse. Jev holds it. When the bridge ends, either the edge comes now, or the float holds one more breath first: the hold, eight bars without words. Either way the edge is then sung once ("one more breath of floating / one more second clean / then"), and the snap follows it. Jev also sets how much of the hidden strain shows in each section of the float. After the snap nothing is Jev's, and the form has no way back, which is the brief's "[S↑ irreversible]" as a rule in code.

The voice. The brief asks for male vocals, sung. A speech voice (Piper's en_US-ryan-high, male) goes through a vocoder whose carrier is one voice following the line's melody in score.abc, a note a syllable, gliding from each to the next, an octave under the score as a male voice reads a treble clef:

• In the float it is soft and wet: the sung carrier over a little of the dry voice, in a long room with a delay.
• From the snap to the conversion it is the same voice a fifth up, dry and forward, overdriven, doubled a little sharp, with a scream layer under it (the same tune with noise for a carrier above 300 Hz). It stays within 2 dB of the guitars.
• In the return to float it is the float's voice again, behind the wash's 700 Hz high-pass.

"Then." is the one line still spoken by Microsoft David on a held chord: Piper cannot say one short word alone (samples/README.md, ck5c). This is a synthesised voice on a tune, not a singer; a model that sings was not rendered for this revision ("For a model that sings").

As posted

The style line:

experimental post-hardcore, math-rock, atmospheric, male vocals, ENVELOPE: weightless and floating the entire body, heaviness withheld until the peak, then one hard-cut snap into impact, [∮ closed loop], [T coiled hidden], [writhe↑], [dS/dt>0], [S→critical], [T→release], [U→KE], [dC/dt→∞], [S↑ irreversible], cosmic knot, topological tension stored invisibly in a calm field, entropy accumulating under the haze, the snap births structure, genesis and catastrophe at once, then a hollow spent float, no return, GUITAR ARC: warm hazy reverb-drenched clean wash, long cavernous reverberant string tails holding the coil, then at the snap liquid two-hand tapping bright major math-rock leads weaving fast, then heavy atmospheric cosmic impact, then thin hollow reverb-wash, floaty verses, hidden tension in the decay, sudden violent tonal snap at the peak, no gradual heaviness, weightless to crushing, sub-bass on impact only, spacious, tape warmth, no glossy polish, no quantized grid

The lyrics:

[Intro - Instrumental: ∮ loose closed loop, low entropy, warm hazy reverb-wash, weightless drift, no weight]

[Verse 1: T coiled, strain hidden, floaty, soft reverb-drenched guitar]
I float so still
you'd swear I'm fine
nothing in me moves
nothing shows the line
the quiet isn't peace
it's just the holding on

[Verse 2: writhe rising slow, crossings forming, still weightless, long string tails, cavernous decay]
under all this calm
the strands are pulling tight
you can't hear it yet
it hides inside the light
something wound too far
to ever look that wrong

[PreBuild: dS/dt>0, entropy creeping, the smooth starting to load, haze thickening, tails stretching]
the drift goes thick
the still gets loud
I'm smooth on top
and screaming underground

[Bridge - float deepening: K tightening, surface serene, loaded underneath, sustained dissonance buried low]
this is the calmest
I have ever been
right at the edge
of what I'm holding in
the knot don't show its teeth
till it's already done

[The Edge: S→critical, unknotting threshold, last weightless breath, reverb suspended, the float at its stillest]
one more breath of floating
one more second clean
then

[SNAP — hard cut: T→release, U→KE, dC/dt→∞, liquid tapping weave ignites, crossings firing, the weight is BORN]
it breaks
all of it
at once
every strand let go
the tapping tears the haze apart
the float was always loaded
now you know

[IMPACT: structure precipitates from the release, heavy atmospheric cosmic, the asteroid lands, genesis and ruin]
and out of the break
a whole world stands
matter from the tension
galaxies from my hands
the thing that broke me open
is the thing that made the land

[Conversion: tension→structure, |x|=max, the knot spent in one event, full weight, full impact]
this is what I held
this is what it weighed
all that quiet drift
was a fuse the whole way laid
I made something
the moment I gave way

[Decay - Instrumental: dS/dt>0, entropy higher now, the impact ringing out, heavy tails decaying slow]

[Return to float: drift again, S↑, the calm hollow now, spent, thin reverb-wash, weightless but empty]
I'm floating again
but it isn't the same
the still is hollow now
the knot gave up its name
I can't get the quiet back
the quiet was the strain

[Outro - Instrumental: the field smooth but changed, entropy ↑, one reverb tail fading, the holding gone, no return]

Style

• 126 bpm, E major: E – C#m – A – B, two bars per chord, each with an added ninth in the guitar, so each sung line sits on one chord.

• The wash: a clean triangle-wave guitar, seven notes against eight eighths, a long reverb and a dotted delay, slight vibrato (tape), each note up to 20 ms late by its own amount. It follows his headings (the Structure table quotes them): its tails lengthen from verse 2 (the delay's feedback from 0.5 to 0.7, each note's release from 0.9 s to 2.2 s), a second voice an octave up thickens it in the pre-build and the bridge, and at the edge it is alone again with almost no vibrato, the stillest. In the return to float and the outro it is high-passed at 700 Hz, thin and hollow, and stays within 10 dB of the voice.

• The strain: E and F a semitone apart, in two octaves (E2/F2 and, quieter, E3/F3), a sawtooth behind a low-pass, held for a whole section at a time, from verse 1 to the edge's sixth bar. It is written flat: it does not grow by itself. Jev's four steps are 6 dB apart and open the filter:

  Step	Level against the written one	Low-pass
  hidden	−12 dB	240 Hz	inaudible
  a trace	−6 dB	330 Hz	felt more than heard
  as written	0 dB	450 Hz	heard under the wash on good speakers
  loaded	+6 dB	650 Hz	plainly audible, on small speakers too

  Whether it grows, and when, is Jev's. It is gone at the snap and never comes back. Nothing else is under the float: no kick, no bass, no distortion before bar 49.

• The snap: two tapped lines (square wave, short), one in sevens and one in nines against the sixteenths, hard left and right, each figure on its chord: the snap's loudest pitched part, within 3 dB of the drums. Under them a broken sixteenth-note beat, two distorted stabs a bar, and the sub.

• The impact: distorted chords held long, a half-time beat, a crash where each of the three heavy sections lands. Under a sung line the held guitars drop back (darker, and quieter in the bar the line starts in), so the words stay within 2 dB of them.

• The sub enters with the snap ("sub bass on impact only": nothing low before the cut). It sits at 55 Hz or above (E2, C#2, A1, B1) and is a sine with a quieter triangle an octave up, so it is heard on small speakers.

• Ringing chords. The chord that opens the decay rings four bars, and the last chord, which lands as the outro opens, rings as long: both are struck once and left to a long release, not cut at the bar.

• Mix. Peaks under −1 dBFS, measured, set by one master level. The snap measures at least 9 dB over the edge before it and within 1 dB of the impact after it. The pre-build and the bridge are no quieter than verse 2. The outro is no lower than −32 dBFS. Measured twice on 2026-10-04 (dBFS, first and second run): the edge −28.2 and −27.3, the snap −17.6 and −17.6, the impact −17.7 and −17.9, the conversion −16.9 and −17.1; verse 2 −27 and −26.6, the pre-build −26.7 and −26.2, the bridge −25.9 and −25.4; the outro −29.3 and −29.3; peak −1.7 and −1.8.

Structure

96 bars as written (~3:03), twelve 8-bar sections; 104 bars if Jev holds the fuse. His heading for each section is quoted.

The hold is written past a gap, at bars 105–112, because the form reads what follows a section as written from where it sits: it is not in the written order and plays only when Jev picks it.

Vocals

oASTEROIDo's lyrics, verbatim, two or three of his lines to a sung line where they are short, each sung once. One line per 2 bars, each on the melody score.abc gives it, on the chord it lands on:

Level. Every sung line is within 1 dB of one integrated loudness, −19 LUFS (ebur128; the 35 measure −19.4 to −18.9), so the song's gains set how loud a section's words are, not the renders.

The keep rule. A line is kept when whisper small.en and medium.en both read back every word of it (samples/README.md has each reading and what was typed to get it; a homophone counts). 34 of the 35 do. Line 10 is the exception: "The still gets loud" comes back as "This still gets loud" from medium.en, and as "This", "That" or "These still" from one model or both in each of five renders; the one kept is read right by small.en.

Jev in the booth

Two jevs, declared at the top in TypeSafe's own shape (jev({ state, questions })), both given the song as state, asked every 8 bars:

• formJev asks one choice: which section plays next. The form leaves it one real choice, the fuse, and it is told to judge that on how much of the strain has shown so far and on the listeners' reactions. The section is drawn from Jev's own probabilities (sample: 1).
• djJev asks, once that is decided (after: { section }), how much of the strain shows in the section (the four steps under Style), and is told to judge from how the sections so far measured and from the listeners' reactions. It is asked only about sections the strain plays in: verse 1 to the edge.

Jev holds the fuse and sets the strain; nothing else is Jev's, and after the snap nothing is. There are no part levels: every part plays as written, so Jev cannot empty the snap or silence the float. There is no question about transitions and none about energy: the brief fixes both. The way into the snap is always the hard cut, and the song's weight is its form, not a dial.

The form.

The cap is 13 sections, which is every section once. No section can repeat, so none needs a times. The only choice is the fuse. The edge, "Then.", the silence and the dog each play once, directly before the snap, and nothing after the snap leads back before it.

The parts. Each plays on its own orbit, as written: wash, strain, tap, heavy, bass, drums, vocals. What a passage is made of has its own: the intro's wash (opening), the hold's strain (holdStrain), the chord and the hit that open the decay (ringing, lastHit), and the last chord (ending).

Without Jev the song plays as written: the strain at its written step, no hold.

For a model that sings

score.abc is the song as a score, in the shape of YuE2's own examples: a vocal voice with one note per syllable and a chord symbol per bar, and an instrumental voice carrying the left tapped line in the snap and the conversion. yue2.json holds his style line as the style and his lyrics with their headings, both as posted. The vocal melody is a plain arch per line on its chord (a fifth higher from the snap to the conversion): a starting point to edit, not a finished tune. The sung lines in samples/ follow it. YuE2 (github.com/multimodal-art-projection/YuE, released 2026-09-09) takes a style prompt, lyrics and an ABC melody-and-chord plan, and renders a sung song from them. It was not rendered for this revision.