Echelon Project Plan

## 1. Overview - **Goal:** Ship Echelon, a standalone Rust-based motion- and voice-driven performance instrument that can also bridge Serato/Ableton and feed cloud rehearsal services. - **Timeline Baseline:** 24-week program across four releases (Prototype → Alpha → Beta → 1.0) aligned with `Echelon.md` roadmap expectations. - **Success Metrics:** <10 ms audio latency, beat-safe automation, gesture/voice control parity with Episode 1 demos, phrase recommendation latency <5 ms, rehearsal loop turnaround <24 h, NPS ≥40 among pilot DJs. ## 2. Phase Breakdown & Milestones | Phase | Duration | Exit Criteria | Milestone Links | | --- | --- | --- | --- | | Prototype (Weeks 1–6) | Rust audio engine running two decks with limiter; Link clock stubbed | Milestone 1 – Engine Bring-up (`Echelon.md` 133-135) | | Alpha (Weeks 7–12) | Scheduler with Link sync, safety policies, MIDI learn for core actions | Milestone 2 – Scheduler + Link (`Echelon.md` 136-141) | | Beta (Weeks 13–18) | Motion/voice integrations, phrase intelligence online, UI deck lanes | Milestones 3 & 4 (`Echelon.md` 149-150, 142-147) | | Release (Weeks 19–24) | Computational rehearsal loop operational, installer & telemetry ready | Milestone 5 + product polish (`Echelon.md` 151-154, 236-239) | ## 3. Workstreams & Leads - **Audio Engine (Lead: Rust Audio Lead)** - Tasks: cpal/cubeb drivers, node graph, resampling/time-stretch, mixer/mastering (`Echelon.md` 25-31, 45-48). - Dependencies: access to sample libraries, Rubber Band licensing, performance profiling. - **Scheduler & Safety (Lead: Control Systems Lead)** - Tasks: Link integration, quantized intents, deck locks, cooldowns (`COMPLETE_IMPLEMENTATION_SUMMARY.txt` 144-148). - Dependencies: action taxonomy from DJ Agent, Link SDK approval. - **AI Services & Phrase Brain (Lead: AI Services Lead)** - Tasks: wrap Episode 1 embeddings (`EPISODE1_OVERVIEW.py` 27-35), ANN service (<5 ms), whisper-rs intents, DELL bridge. - Dependencies: GPU sidecar infrastructure, model conversion budget. - **Human Interface (Lead: UX Lead + Frontend Engineer)** - Tasks: egui/iced UI (deck lanes, phrase browser, automation curves), MIDI learn UX, telemetry (`Echelon.md` 8-12, 243-254). - Dependencies: scheduler IPC spec, design system, usability testing participants. - **Computational Rehearsal & Cloud (Lead: Data Ops Lead)** - Tasks: reuse logging/replay (`EPISODE1_OVERVIEW.py` 59-62), nightly training pipelines, dashboard updates. - Dependencies: cloud infra budget, data retention policy. - **DevOps & QA (Lead: Platform Lead)** - Tasks: CI/CD, automated latency tests (`COMPLETE_IMPLEMENTATION_SUMMARY.txt` 71-74), crash telemetry, installer packaging. - Dependencies: hardware lab, signing certificates, QA staffing. ## 4. Detailed Schedule (Gantt Outline) - **Weeks 1