Downspout VST3 plugins
All plugins

MIDI generator

Sidecar

MIDI phrase player for generated solo material with deterministic local generation and optional localhost coordinator requests.

Bundle
sidecar.vst3
Role
AI-ready phrase player
Sidecar plugin interface

Functionality

Sidecar plays validated solo phrases against host BBT transport. It can generate token-free local phrases or request material from the separate downspout-ai-coordinator process over localhost.

The plugin never owns API keys and never performs network work from the audio/MIDI callback. Routed MIDI is used as generation context rather than passed through.