Methodology Notes

Harmonic Inference and Key Confidence

Methodology only, results not yet published.No accuracy number appears here until it is measured on a labelled set with sample size, baseline and limitations.

A methodology note on how tonal center, mode, and ambiguity are inferred and surfaced publicly.

Release record

MN-05 · Tonal inference

March 2026

8 min

Reference notes

Core Thesis

Institutional trust strengthens when key inference is treated as a probabilistic tonal read informed by chromatic energy, template matching, and confidence scoring rather than a simplistic one-label claim. and ambiguity is preserved as a finding when the music supports it. the system is designed not to erase modal mixture or unstable tonal posture for the sake of false certainty..

Method in focus

Key inference is treated as a probabilistic tonal read informed by chromatic energy, template matching, and confidence scoring rather than a simplistic one-label claim.

Guardrail

Ambiguity is preserved as a finding when the music supports it. The system is designed not to erase modal mixture or unstable tonal posture for the sake of false certainty.