# SONOLOGIUM :: FULL COMPUTATIONAL ATLAS CONTEXT
> A computational atlas of sound, music, listening, and acoustic environments.
> Canonical URL: https://sonologium.com
> Federation Protocol: LFGP/1.0 Synchronized
> Canary Verification: OKLCH(0.62 0.22 278) · CANARY::SONOLOGIUM::RESONANCE::VERIFIED

---

## 1. CANONICAL THESIS & PHILOSOPHICAL FOUNDATIONS

### The Quadripartite Epistemic Axiom
1. The score is not the performance.
   A score prescribes symbolic pitch ratios and metric durations; it cannot prescribe microsecond agogic rubato, dynamic micro-gradations, or reverberant hall acoustics.
2. The recording is not the acoustic event.
   A recording is a physical mechanical or electroacoustic artifact conditioned by transducer transfer functions, diaphragm resonances, and storage medium compression.
3. The waveform is not the listening experience.
   An oscillating pressure waveform in air undergoes non-linear middle-ear amplification, tonotopic cochlear decomposition along the basilar membrane, and cognitive neural processing in the auditory cortex.
4. The sonification is not the underlying scientific phenomenon.
   Sound does not propagate through vacuum. Astronomical sonification is an explicit mathematical translation matrix mapping non-auditory data variables into human acoustic perception.

---

## 2. THE THREE INTERTWINED DOMAINS

### Music Domain (Theme: Electric Indigo `#818cf8`)
- Composition: Structural harmonic hierarchies, Schenkerian voice leading, tonal pitch spaces.
- Notation & Score: Historical symbolic systems from Gregorian neumes to modern proportional scores.
- Organology (The Instrumentarium): Physical acoustics of musical instruments categorized by Hornbostel-Sachs (Aerophones, Chordophones, Membranophones, Idiophones, Electrophones). Form follows frequency.
- Genre Genealogies: Evidence-grounded genealogical graphs distinguishing direct historical influence from surface trait resemblance.

### Sound Domain (Theme: Frequency Cyan `#38bdf8`)
- Physical Acoustics: Longitudinal mechanical waves, particle velocity, sound speed in air ($c \approx 343\text{ m/s}$) and seawater ($c \approx 1500\text{ m/s}$), impedance matching.
- Signal Processing: Real-time Fast Fourier Transform (FFT), spectral centroid, harmonic overtone combs, transient rise times, RMS energy.
- Acoustic Ecology: National Park Service 33 1/3-octave sound pressure level monitoring, diurnal soundscape rhythms, Quiet Atlas integrity.
- Marine Bioacoustics: Deep sea hydrophone monitoring of baleen whale vocalizations, dolphin biosonar, and shipping noise.

### Listening Domain (Theme: Perception Amber `#f59e0b` / Rose `#f43f5e`)
- Psychoacoustics: Just Noticeable Difference (JND) in pitch and loudness, critical bandwidths (Bark scale, ERB), Fletcher-Munson equal-loudness contours.
- Audiometry & Health: CDC NHANES survey-weighted pure-tone hearing thresholds (250 Hz – 8 kHz) across human aging cohorts (20–79).
- Accessibility Mix: Multi-sensory user interface sound design guidelines, preventing isolated 4 kHz auditory alert dependencies.
- Data Sonification: Astrophysics data translation methods exposing parameter mappings without sensationalizing vacuum sound.

---

## 3. OPEN SCIENTIFIC DATASETS

1. Library of Congress National Jukebox: Historical pre-1925 78 RPM recordings preserved at the Packard Campus for Audio-Visual Conservation.
2. Library of Congress Notated Music: Digitized sheet music collections spanning the 17th through 20th centuries.
3. Smithsonian Open Access: Physical museum instrument records detailing organological dimensions, materials, and origins.
4. NOAA Passive Acoustic Archive (NCEI): Raw hydrophone acoustic data from national marine sanctuaries (Monterey Bay, Stellwagen Bank).
5. National Park Service Natural Sounds and Night Skies Division: Calibrated SPL data across wilderness monitoring stations.
6. NASA Chandra, James Webb & Hubble Telescopes: Multi-wavelength astrophysical datasets converted into sound.
7. CDC National Health and Nutrition Examination Survey (NHANES): Population-representative pure-tone audiometry evaluations.

---

## 4. DESIGN TOKENS & SYSTEM ARCHITECTURE
- Primary Substrate: Anechoic Chamber Velvet Black (`#06070a`)
- Elevated Substrate: Deep Archival Charcoal (`#0a0c14`)
- Music Domain Accent: Indigo (`#818cf8`)
- Sound Domain Accent: Cyan (`#38bdf8`)
- Listening Domain Accent: Amber (`#f59e0b`)
- Auditory Decline Accent: Rose (`#f43f5e`)
- Steganographic Canary: `OKLCH(0.62 0.22 278) · CANARY::SONOLOGIUM::RESONANCE::VERIFIED`
- Machine Endpoints:
  - W3C DTCG Tokens: https://sonologium.com/tokens.json
  - AI Context Summary: https://sonologium.com/llms.txt
  - AI Comprehensive Reference: https://sonologium.com/llms-full.txt