Audit In Action
See the audit running on a real hit
The audit isn’t a black box. Every primitive is a deterministic measurement (or a Haiku composite) that produces a banded output. Here’s the rock audit applied to a canonical hit — what we measure, what we expect, what the result means.
“Don't Stop Believin'”
Journey · 1981
Most-downloaded 20th-century rock song; Rolling Stone 500 (rank 133); arena-anthem canon
The 7 audit primitives — what each measures + what it found
The rock audit composes 6 deterministic primitives + 1 Haiku-judged composite. Each runs against every chorus block, verse block, and section transition. Output is a banded measurement the critic loop folds into the verdict.
VPI · Vowel-Pitch Integrity
Pass (strong)Measures: Closed-vowel chorus-peak collision rate
Expected band: very-low-collision
Chorus line-ends terminate on open vowels (-in', -ay, etc.). Steve Perry's chest-voice climb lands cleanly because F0 doesn't collide with closed-vowel formants.
RVL · Register-Vowel Landing
Pass (strong)Measures: Chorus-wide open-vowel discipline
Expected band: high
Sustained vowels at chorus peaks; "believin'" closes on -in' which holds clean on the climb.
TTI · Title-Tension Index
Pass (strong)Measures: Negation / modal / preposition / mundane-transcendent contrast
Expected band: very-high
Title carries negation ("Don't") + imperative ("Stop") + open-vowel cadence ("Believin'"). TTI score near maximum — the Desmond Child / Mutt Lange title-tension template.
RHC · Rhythmic Hook Contrast
Pass (strong)Measures: Chorus rhythmically compressed vs verse
Expected band: very-high
Verses establish narrative across longer phrases; chorus compresses to short anthemic chants — the rhythmic compression that lands stadium recognition.
CWM · Concreteness Word Metric
PassMeasures: Concrete-noun density (Springsteen/Petty rule)
Expected band: high
Concrete anchors throughout: "small town girl", "South Detroit", "smoky room", "perfume of wine". Above floor; not the highest concreteness in the rock corpus.
GDD · Gap Design Density
Pass (strong)Measures: Stadium response space (instrumental + short lines)
Expected band: high
The 3-minute pre-chorus delay before the chorus drop IS the gap design. Instrumental verses + delayed chorus reveal = stadium response architecture.
SPT · Stadium Participation Test (Haiku-judged)
Pass (strong)Measures: 4-dimension composite: vowel anthemability + memorability + collective voice + phonetic punch
Expected band: 9.0+
Universal-pronoun anthem voice ("we'll keep on running"), open-vowel peaks, repeatable hook structure, hard consonants on stressed beats. 50,000-stadium ready.
What this proves
1. The audit isn’t opinion. Every primitive is a measurement against a banded threshold calibrated on 30 verified rock hits. The audit’s job is to detect WHERE a lyric fails — by name, in the genre’s own vocabulary.
2. Canonical hits pass. Don’t Stop Believin’ lands at S+/97 because it satisfies every load-bearing craft rule the genre demands. The audit is calibrated to recognize that fact, not to second-guess it.
3. The forge inherits the audit. When you forge a new rock song, the same 7 primitives gate the output. Closed-vowel chorus cliffs get caught BEFORE you see the result. The output isn’t generic AI lyrics — it’s lyrics that pass the audit your genre demands.
Try the audit on your own lyrics
Paste a lyric into the Crucible (free, no login) and see the 8-voice critique. Or open the Forge and write a new song that passes the audit your genre demands.