Lado — Key & BPM Overlay

About

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LADO — Key & BPM Overlay
Chrome Web Store — Submission Description
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Instant BPM, key & Camelot for YouTube, SoundCloud and Bandcamp. Tap tempo, metronome, pitch reference. No account, no tracking.


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Stop switching tabs to look up BPM and key.

Lado detects the track you're listening to and overlays its musical data directly on the page — no account, no setup, no clicking around. Whether you're a producer sampling a reference track, a DJ planning your next mix, a music student analysing harmony, or just a curious listener — Lado gives you the data in seconds, right where you already are.

Named for Ладо (Lado) — the ancient Slavic deity of harmony.

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FREE FEATURES
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→ Musical key (e.g. F# minor, Bb major)
→ BPM / tempo
→ Camelot wheel code for harmonic mixing
→ Time signature (4/4, 3/4, 6/8...)
→ Tap tempo — tap the button or hit spacebar to detect BPM by feel
→ Metronome — one-click click track locked to detected or tapped BPM
→ Half / double BPM toggle — tap the BPM chip to cycle original → ½ → ×2
→ Pitch reference — click the key chip to hear the root note as a pure tone
→ Manual entry — track not in the database? Enter key and BPM manually, saved locally
→ 30-day local cache — instant results on repeat visits
→ Works on YouTube, SoundCloud, and Bandcamp

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PRO FEATURES — $15 one-time, no subscription
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→ Compatible keys panel — 3 harmonically adjacent Camelot keys at a glance
→ Energy, danceability, mood & acousticness scores
→ Half-time & double-time BPM displayed simultaneously
→ Searchable track history log with CSV export
→ Key notation toggle: Standard / Camelot / Open Key
→ Lado Teach — full music theory panel for the detected key:
   • Scale notes with scale degrees
   • Diatonic chords (I through vii°) with note names
   • Common progressions in Roman numeral notation
   • Parallel modes with feel descriptions
   • Relative major/minor

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PRIVACY FIRST
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Lado requests the minimum permissions necessary. It only reads the track title and artist name from supported music pages — nothing else. No browsing history. No email. No personal data. Results are cached locally on your device. No ads, no affiliate links, no tracking of any kind.

BPM and key data provided in part by GetSongBPM.com via their Web API, with fallback support from ReccoBeats and MusicBrainz.