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STEMSTAGE wiki

STEMSTAGE is the rhythm game that plays any song. Drop in a track and an AI (Demucs) splits it into stems. Every part becomes a playable chart: guitar, bass, drums, keys and vocals. Play with a controller, Rock Band / Guitar Hero gear, a DualSense, MIDI, or your real guitar, bass and keyboard.

🌐 Website: https://stemstage.varconstint.com/ · ⬇ Latest release

For players

Page	What's in it
Installation	The one-click installer for Windows and Linux: game, controller bridge and AI splitter
Getting Started	Your first song, importing music, instruments and difficulties, menu buttons
Controllers and DualSense	Supported devices, config profiles, adaptive triggers
Real Instruments	Play the guitar, bass or keys part on the real instrument: reading the tab and keyboard
Singing and Lyrics	Microphone setup, AI lyrics and the online lyrics check
Discord	Log in with Discord, automatic status, invites that work for everyone
Band and Online	Local band mode and online rooms
Troubleshooting	Mic permissions, controllers, logs and common fixes

For developers

Page	What's in it
Development Setup	Build from source on Windows or Linux, run in a browser with hot reload
Architecture	Services, data flow, where the code lives
Controller Bridge Protocol	The DualSense WebSocket protocol and how input latency is kept low
Lyrics Cross-Check	How Whisper's timing and LRCLIB's words are aligned
Leaderboard API	The world leaderboard's public API (JSON / JSONP), the Discord callback, running it on Cloudflare
Release Process	Versions, tags, the release and build workflows, update signing, website and wiki
Contributing	Code style, testing, pull requests