How It Works
Open Decks is built on a stack of music data APIs, audio analysis tools, and community knowledge. Here's every layer — and what it unlocks for you.
Start with what you already have. Open Decks connects to the services you use — or you can begin immediately with sample playlists, no login required.
Full library sync, BPM and key metadata via audio features API, playlist import, real-time search.
Library sync via MusicKit, playlist import, catalogue search across 100M+ tracks.
Search and stream for reference listening. Limited challenge features — best for concept demos.
Drag and drop MP3, FLAC, or WAV. Client-side analysis via Essentia.js. No upload required.
Start immediately with genre-matched sample playlists. Full Alphabet Run and basic challenges available from first visit.
Once we have your tracks, we analyze them. Every song in your library gets a BPM, a Camelot key position, an energy rating, and a danceability score — the foundation for every challenge.
Open audio analysis database. BPM detection, key detection, danceability, mood — all from audio fingerprints.
In-browser audio analysis library. Runs locally — no server upload. Real-time BPM and key detection for local files.
Camelot wheel mapping and harmonic compatibility scoring. Powers every key-related challenge on the platform.
The words matter too. Phrase Finder runs semantic search against your library's lyrics — finding emotional and thematic bridges, not just exact word matches.
World's largest lyric database. Phrase-level search, annotation data, songwriter credits, and cultural context notes.
Real-time lyric sync, mood tagging, language detection. Powers the live Bridge mode in Phrase Finder.
Open Decks' own phrase embedding layer. Converts lyrics to vector space so Phrase Finder finds meaning, not just keywords.
Music has roots. Era Mapper, Origin Trace, Influence Web, and Sample ID are all powered by this layer — where Open Decks goes from technical training to genuinely educational.
Open music encyclopedia. Release dates, genre tags, artist relationships, label history. The backbone of cultural tools.
Label data, pressing history, regional release metadata. Powers Label Run and genre provenance tools.
Genre lineage, editorial tags, influence mapping. Connects tracks to the scenes that shaped them.
Sample chains and interpolation tracking. Powers the Sample ID tool at Architect tier.
Listening graphs, similar artist relationships, scrobble-based genre clusters. Powers Influence Web.
The last layer isn't a database. It's the Stewards. They contribute scene knowledge that no API contains — and they govern the platform through Open X's sociocratic structure.
This layer is edited, versioned, and governed by Open X. Stewards hold consent authority — meaning community knowledge changes only when the Stewards agree to them.
Apply to be a Steward →Tool Library
Click any category to see the tools inside it, which data sources power them, and when they unlock.
Data Partners
Open Decks is built on open data and respectful API use. Many of these services are free and open-source. We give credit, link back, and build on top — not over.