EX_092.md

music/exemplars/formula_cards/EX_092.md

Formula card EX_092 — Snake Eater (Ladder Climb)

Game: Metal Gear Solid 3 · Composer: Norihiko Hibino · Purpose class: TENSION

Tier: RUNG-1 MEASURED · measured 2026-08-07T11:50:41+00:00 · source format mov,mp4,m4a,3gp,3g2,mj2 at 44100 Hz

Length 178.08 s across 14 sections; baseline 172.27 bpm; key F# minor.
Opens fade_in; the hook lands at 0.569 s.
Arrangement runs up to 9 spectral lanes; melodic salience 0.8198 across 280 extracted notes.
Event grammar: 33 drops, 37 raises, 2 breaks, 8 tutti passages; silence budget 3.8%.
Dynamic range 13.91 dB, peak at 58% through the track.
Complexity steps 15 times across 127 bars, 7 of them at a section boundary.

Lanes are a spectral_band_proxy reading, not an instrument roster. Section 11.1 requires the lane method be declared. Bands are not instruments: two instruments in one octave read as one lane, and one instrument spanning two octaves reads as two. Entry/exit and simultaneity shapes are trustworthy; a roster is not claimed.
Bar arithmetic on this card uses 4 beats per bar at the baseline tempo. The onset period beside it is MEASURED; the signature is not.
A cadence census needs harmonic transcription and is a rung-2 dimension; the seam measurement is what rung 1 can honestly report about how it ends.
Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2).

Source file: D:\audio\exemplars\iTunes_Sweep\Compilations\Metal Gear Solid Vocal Tracks\03 Snake Eater.m4a
SHA256: 1db63eefff130ef9d1be146245708f47c4e7b07ef47576d1158bf443ea445e34
Decoded by: ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers
Legal posture: ANALYSIS FOR UNDERSTANDING ONLY. Audio lawfully obtained by Josh, read from disk, measured, and never copied, redistributed, or used as model input of any kind.

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