EX_046.md

music/exemplars/formula_cards/EX_046.md

Formula card EX_046 — BFG Division

Game: Doom · Composer: Mick Gordon · Purpose class: BATTLE

Tier: RUNG-1 MEASURED · measured 2026-08-07T00:20:37+00:00 · source format mov,mp4,m4a,3gp,3g2,mj2 at 44100 Hz

Length 506.763 s across 8 sections; baseline 152.0 bpm; key F# minor.
Opens silence_then_hit; the hook lands at 9.578 s.
Arrangement runs up to 9 spectral lanes; melodic salience 0.5368 across 329 extracted notes.
Event grammar: 28 drops, 37 raises, 5 breaks, 21 tutti passages; silence budget 1.1%.
Dynamic range 12.54 dB, peak at 67% through the track.
Complexity steps 27 times across 320 bars, 8 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\Mick Gordon\DOOM (Original Game Soundtrack)\11 Bfg Division.m4a
SHA256: 23057f781ab90723dacc89034c5132a50dde732d95236ee76868a4476bdc1a14
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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