Future
Toggle reharmonization techniques on a progression and hear the structure change — computed, not generated.
Open Future →No install · in your browser
Same deterministic harmony behind chords.thiri.ai and the MCP server — hear it, shape it, export MIDI. Built by Blues Prince Media.
Building an app or agent? Read the API docs · Get a free key
Live now
Toggle reharmonization techniques on a progression and hear the structure change — computed, not generated.
Open Future →Describe a musical vibe in words. THIRI arranges a four-piece band with harmony, bass, drums, and more.
Open Conductor →Voice-led paths across your changes — every note legal, every performance reproducible from seed + tempo.
Open Helix →Real-time harmony voices — the musician-facing surface of the engine.
Open Harmonizer →More from the lab
Band studio, drum sequencer, practice tools, solfege lab, and more — all live on Innovate.