Author	SHA1	Message	Date
Aqua	da902619de	web: onset detector and key estimator with synthetic-signal tests ... Spectral-flux onset detector (max-filtered reference, median threshold, refractory) and peak-based chroma with Krumhansl profile key estimate. Own FFT; no external dependencies. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>	2026-11-05 18:52:29 +00:00