Spaces:
Running on Zero
Running on Zero
| title: DExter | |
| emoji: 🎹 | |
| colorFrom: purple | |
| colorTo: indigo | |
| sdk: gradio | |
| sdk_version: 6.24.0 | |
| python_version: '3.10' | |
| app_file: app.py | |
| pinned: false | |
| license: mit | |
| short_description: Render expressive piano performance from a score | |
| tags: | |
| - category:synthesis | |
| - subcategory:performance-rendering | |
| - input:file/xml|musicxml | |
| - output:midi | |
| - piano | |
| startup_duration_timeout: 1h | |
| # DExter | |
| HARP endpoint for expressive piano performance rendering. Upload a MusicXML piano score, or use the bundled Schubert example, and download a generated MIDI performance. The model uses the official score-only pretrained checkpoint. Perceptual feature controls and style transfer are not available in the official custom-score inference path. | |
| The upstream source code is MIT licensed. The separately hosted checkpoint has no stated redistribution license, so the Space is marked with an unknown overall license; see [SOURCES.md](SOURCES.md). | |
| ## Local setup | |
| ```bash | |
| uv venv --python 3.10 .venv | |
| UV_CACHE_DIR=/path/to/writable/cache uv pip install --python .venv/bin/python -r requirements.txt | |
| git lfs pull | |
| .venv/bin/python app.py | |
| ``` | |
| Run direct inference with `from runtime import render; render("score.musicxml", "performance.mid")`. The official sampler uses 999 diffusion steps and can be slow on CPU. Source, checkpoint provenance, and redistribution note are in [SOURCES.md](SOURCES.md). | |