ResonHarbor

ResonHarbor is a warm amber stage dock for everyday music math — BPM tap analysis, metronome pulse bars, live chord fret atlases, tuning fork pitch checks, and setlist pin racks. Calculator modules use analyze-then-reveal flows: enter values, tap the amber latch, review charts and metrics, and save runs to your harbor feed. Setlist Pin Rack adds full CRUD with undo delete. History exports to CSV with module filters and payload restore. Six-page onboarding walks you through each lab. All tools run offline on your device — no accounts, no cloud sync, no ads.