Benchmark Lab
Key Detection Benchmark
How reliably does MusicMind identify tonal center, mode, and ambiguity? This benchmark compares key detection confidence across diverse genres and maps the degree to which a track sits in a stable or ambiguous tonal field.
Signal definition
Dimension: Harmony
Focus: Tonal center confidence
Benchmark scope: Tonal center accuracy and ambiguity across reference reads
Benchmark readout
The public readout for this benchmark.
This page documents the method; results are not yet published. Once measured, the readout will track the following dimensions so researchers, creators, and operators can inspect the same signal from multiple angles.
Methodology
How this benchmark is assembled.
Step 01
Each track is analyzed using MusicMind's chromagram-based key detection with Krumhansl-Kessler profiles.
Step 02
Confidence is derived from correlation between observed pitch-class energy and learned tonal templates.
Step 03
Ambiguity labels reflect how strongly the detected center dominates close competing tonal candidates.
Step 04
All analysis runs client-side in the browser with no server-side audio processing.
Related guides
Interpretation, creator guidance, and release context.
Each guide below uses the same benchmark from a different angle so readers can move from evidence to practical decisions without leaving the research trail behind.
Interpretation
Translate the raw benchmark page into a clear decision frame and know what to inspect first.
Open guideCreator Guide
Turn the benchmark into practical moves for writing, arrangement, production, and mix decisions.
Open guideResearch Brief
Place the benchmark inside the citation chain, the corpus logic, and the broader observatory system.
Open guideRelease Strategy
Use the benchmark as a release and programming lens, not just a descriptive metric.
Open guideNext move
Run this same layer on your own track.
Public benchmarks establish the reference frame. MusicMind applies the same logic to a specific song.