About Lado
Lado detects the track currently playing on YouTube, SoundCloud, or Bandcamp and displays the musical key, BPM, Camelot wheel code, and time signature directly on the page as an overlay — no tab switching required. Built for DJs, music producers, and music students who need harmonic mixing data while browsing music online.
BPM and key data provided by GetSongBPM.com via their Web API, with fallback support from ReccoBeats and MusicBrainz.
Features
Auto track detection
Detects what's playing on YouTube, SoundCloud, and Bandcamp automatically.
BPM display
Accurate BPM readout. Tap the chip to cycle half-time and double-time.
Musical key & Camelot
Shows the track's key and its Camelot wheel position for harmonic mixing.
Time signature
Time signature detection for mixing and production reference.
Tap tempo
Tap the button or hit spacebar to detect BPM by feel — no track needed.
Metronome
One-click metronome locked to the detected or tapped BPM.
Pitch reference
Click the key chip to hear the root note as a pure tone. Tune up instantly.
Manual entry
Track not in the database? Enter key and BPM manually — saved locally.
Privacy-first
No tracking. No account. Only the track title and artist leave your device.
Compatible keys
Shows all harmonically adjacent Camelot wheel keys for seamless mixing.
Energy & mood scores
Track energy, danceability, mood, and acousticness scores at a glance.
Half & double BPM panel
Half-time and double-time displayed simultaneously alongside the original.
Track history + CSV export
Searchable history of every track looked up, exportable as CSV.
Key notation toggle
Switch between Standard (F# minor), Camelot (11A), and Open Key (4m).
Lado Teach — Theory panel
Full music theory for the detected key: scale, diatonic chords, progressions, modes, and relative key.
Pricing
Technical
Lado — Privacy Policy
Lado is built on a simple principle: your browsing activity is yours. This policy explains exactly what data the extension touches, what it sends out, and what it never does — in plain language, not legalese.
Lado is developed and maintained by ALTRU.dev, an independent software studio focused on privacy-first tools. ALTRU.dev is a solo developer project operating under the tagline "Code for Humanity."
When you navigate to a supported music platform, Lado reads only the track title and artist name displayed on the page. No audio is captured or analysed.
The track title and artist name are sent as a plain-text search query to one or more music metadata APIs to retrieve BPM, musical key, Camelot notation, and time signature. No other data is sent over the network.
Lookup results are cached in your browser's local storage for up to 30 days. Your key notation preference is also stored locally. This data never leaves your device.
Lado requests only the permissions strictly necessary to function. No wildcard <all_urls> permission — Lado can only run on the specific domains listed below.
Lado uses three music metadata services in a waterfall. Each receives only the track title and artist name. No account, device identifier, or personal data is sent.
Lookup results are cached locally for up to 30 days under a key derived from the normalised artist + title string. Your key notation preference is also stored locally. If you purchase Pro, ExtensionPay stores a payment status boolean — no payment details, just a pass/fail flag.
The Pro tier is a one-time payment of $15 USD processed through ExtensionPay (Stripe). ALTRU.dev never receives, stores, or processes your payment card details, billing address, or any financial information.
If this policy is updated, the effective date will change and a notice will be published on the Chrome Web Store listing. This policy will never be updated to permit the collection or sale of personal data.
For privacy questions, data requests, or concerns, reach out through the ALTRU.dev contact page. We aim to respond within 5 business days.