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CC-Echelon Capabilities Assessment - What's Already Built

**Reality**: CC-Echelon is a **full-featured audio/music engine** with: - ✅ **Audio analysis** (BPM, beats, onsets, energy, spectral features) - ✅ **Phrase database** with SQLite + vector search - ✅ **Real-time audio processing** - ✅ **MIDI/OSC integration** - ✅ **Voice control** - ✅ **Motion bridge** (connects to motion data)

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**Date**: 2025-12-17 **Question**: Is the majority of music pipeline work already done in Rust? **Reality**: CC-Echelon is a **full-featured audio/music engine** with: - ✅ **Audio analysis** (BPM, beats, onsets, energy, spectral features) - ✅ **Phrase database** with SQLite + vector search - ✅ **Real-time audio processing** - ✅ **MIDI/OSC integration** - ✅ **Voice control** - ✅ **Motion bridge** (connects to motion data) **What This Gives You**: - ✅ **BPM detection** via autocorrelation (60-200 BPM range) - ✅ **Beat tracking** with onset detection - ✅ **Energy calculation** via RMS - ✅ **Spectral analysis** (centroid, rolloff) - ✅ **Phrase boundary detection** **Comparison to Roadmap**: | Feature | Roadmap (Python) | CC-Echelon (Rust) | Status | |---------|------------------|-------------------|--------| | BPM detection | librosa | ✅ Autocorrelation | **DONE!** | | Beat tracking | librosa | ✅ Onset + tempo | **DONE!** | | Energy level | RMS | ✅ RMS envelope | **DONE!** | | Spectral features | STFT | ✅ FFT + centroid | **DONE!** | | Phrase segmentation | Novelty | ✅ Boundary detection | **DONE!** | **Infrastructure**: - ✅ SQLite database for metadata - ✅ Vector embeddings for similarity search (HNSW) - ✅ Fast phrase lookup by ID - ✅ Similarity queries for recommendations

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