Le Rug — Musical DNA

The Chord Vocabulary Spectrum

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The Chord Vocabulary Spectrum

Narrative synthesis across the four 2026-04-15 case studies. Where Ray Weiss’s chord vocabulary actually came from, measured against the 148-entry reference database and cross-checked against Ray’s own self-reported origin story.

The spectrum

Ray’s chord vocabulary sits inside a spectrum defined by two poles. [[Theory/Influences/Modest Mouse - The Chord Vocabulary Home|Modest Mouse’s Lonesome Crowded West]] is the foundation pole: sus-forward (10.4% sus chord density), major-triad-anchored, modal, low on extended chords (1.1% minor 7th, 2.4% major 7th). [[Theory/Influences/Prefab Sprout - Steve McQueen as the Tightest Match|Prefab Sprout’s Steve McQueen]] is the jazz ceiling pole: also sus-forward (12.1% sus), major-triad-anchored, but heavy on extended chords (8.43% minor 7th, 7.51% major 7th).

Ray sits between them on the extended chord axis. Minor 7ths: Ray 4.6%, Modest Mouse 1.1%, Prefab Sprout 8.43%. Ray at the midpoint. Major 7ths: Ray 4.0%, Modest Mouse 2.4%, Prefab Sprout 7.51%. Ray closer to the midpoint than to either end.

On the sus / major / minor triad axes, all three catalogs stack in the same neighborhood. The spectrum is specifically about how much jazz-chord extension sits on top of a shared triadic-and-sus foundation.

Two origin stories for two layers

Ray’s own account of where these came from splits cleanly:

  • The foundation layer (sus density, major/minor triad balance, modal character) came from listening to Modest Mouse as a teenager. Ray: “Right around with [Modest Mouse] is when I started really getting into music and many of my first attempts at bands were just straight ripping them off.” The atomic sus-chord match (Ray 10.9%, Lonesome Crowded West 10.4%, Building Nothing 10.46% — two Modest Mouse albums within half a percentage point, the tightest sus match anywhere in the 148-entry DB) confirms this mathematically.

  • The extension layer (minor 7ths, major 7ths, jazz-chord voicings) came from pedagogy. A high school classmate taught Ray Wes Montgomery’s “Four on Six” — basic jazz chords, extensions, alternative voicings. Then formal guitar lessons with Jesse Harris, who won a Grammy a few years later for producing Norah Jones’s Come Away With Me. The fact that Prefab Sprout (a canonical jazz-chord-informed songwriting project) sits at the ceiling pole of the spectrum reflects where Ray’s extension layer would have landed had he absorbed it through listening instead of teaching. The two routes produced converging destinations.

The fingerprint separates these two layers by placing Modest Mouse and Prefab Sprout at opposite ends of the extended-chord axis. Ray at the midpoint is not a coincidence — it’s the superposition of two distinct training sources.

Three atomic chord-type matches

Across the 2026-04-15 case studies, three chord-type dimensions showed sub-0.5 percentage point matches between Ray and specific artists. An atomic match on a 0-100% scale is the tightest signal the chord-vocabulary fingerprint produces:

Artist / AlbumDimensionRayOtherDelta
Modest Mouse — Building Nothing Out of Somethingsus combined10.9%10.46%0.44 pp
Modest Mouse — Lonesome Crowded Westsus combined10.9%10.40%0.50 pp
Prefab Sprout — Steve McQueenmajor triad13.8%14.01%0.21 pp
Kate Bush — Hounds of Lovemajor triad13.8%13.57%0.23 pp

Two Modest Mouse albums within half a percentage point on sus. Prefab Sprout and Kate Bush both within a quarter of a percentage point on major triads. No other entries in the 148-entry reference database come that close on any chord-type dimension. The atomic matches are specific, reproducible, and distributed across artists Ray actually listens to (Modest Mouse, Prefab Sprout) plus one he had never heard before the tool surfaced it (Kate Bush).

The “neglected to mention” pattern

Four of the five chord-vocabulary neighbors Ray absorbed enough from to show up as structural matches were ones he had to be reminded of, not ones he spontaneously named as formative influences:

  • Prefab Sprout — surfaced in the 2026-04-14 evening home-PC session during the Modest Mouse investigation. Ray named Steve McQueen as a specific listening influence after the tool’s ranking put it in the top 10.
  • The Smiths — surfaced in the same session. Ray: “I’d been neglecting to mention Smiths despite them being major as a kid.”
  • Felt — surfaced alongside The Smiths. Maurice Deebank’s classical-guitar background into jangle-pop is a specific influence on Ray’s voicing choices.
  • Big Country — surfaced during the 2026-04-15 Kate Bush ear-check. Ray: “Another band I neglected to mention that was a clear discovery that had a huge effect on me. Hearing Inwards for the first time was one of those moments where I really thought I heard myself in the work.”
  • John Cale — surfaced alongside Big Country in the same session. Cale’s Artificial Intelligence (1985, the album with “Dying on the Vine”).

The pattern is consistent enough to be its own finding: the tool’s chord-vocabulary ranking is recovering formative influences Ray consciously knew but didn’t spontaneously articulate. The stated influence list is incomplete in a specific direction (sophisticated-chord-vocabulary songwriters that get absorbed during formative listening but don’t make the canonical “who shaped me” narrative). Once the tool names them structurally, Ray recognizes them instantly and supplies the biographical context.

This is a different mode of finding than the Dead or Alive moment (surprise similarity to an artist Ray had covered but dismissed) or the Kate Bush zero-prior discovery (the tool produced a listener recommendation for music Ray had never heard). Those two are the dramatic versions. The “neglected to mention” pattern is quieter and more reliable — the tool doesn’t produce a dramatic reveal, it produces a memory aid.

Case studies in this vault

For the full ranking context see The Full Comparison Map and the template-generated Chord Vocabulary data doc.

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