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README.md

@@ -1,43 +1,65 @@
 ---
-dataset_info:
-  features:
-  - name: image
-    dtype: image
-  - name: score_id
-    dtype: string
-  - name: composer
-    dtype: string
-  - name: opus
-    dtype: string
-  - name: title
-    dtype: string
-  - name: corpus
-    dtype: string
-  - name: instruments
-    list: string
-  - name: page
-    dtype: int64
-  - name: n_pages
-    dtype: int64
-  splits:
-  - name: train
-    num_bytes: 637321476
-    num_examples: 8447
-  - name: dev
-    num_bytes: 41652427
-    num_examples: 584
-  - name: test
-    num_bytes: 19547420
-    num_examples: 271
-  download_size: 637847338
-  dataset_size: 698521323
-configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: data/train-*
-  - split: dev
-    path: data/dev-*
-  - split: test
-    path: data/test-*
+license: cc-by-sa-4.0
+task_categories:
+  - image-to-text
+language:
+  - en
+tags:
+  - music
+  - optical-music-recognition
+  - omr
+  - sheet-music
+  - musicxml
+  - lilypond
+size_categories:
+  - 1K<n<10K
 ---
+
+# OpenScore — Full-Page Score Images
+
+Full-page score images rendered from the [OpenScore](https://github.com/OpenScore)
+corpora via [LilyPond](https://lilypond.org), paired with source MusicXML.
+
+## Corpora
+
+| Corpus | Scores | Staves/system | Source |
+|--------|--------|---------------|--------|
+| Lieder | ~1,460 | 3 (voice + piano) | [OpenScore/Lieder](https://github.com/OpenScore/Lieder) |
+| Quartets | ~122 | 4 (violin I/II + viola + cello) | [OpenScore/StringQuartets](https://github.com/OpenScore/StringQuartets) |
+| Orchestra | ~94 movements | 10–20+ (full orchestra) | [MarkGotham/Hauptstimme](https://github.com/MarkGotham/Hauptstimme) |
+
+## Format
+
+```python
+{
+    "image":       PIL.Image,   # full-page score render (LilyPond Emmentaler font)
+    "score_id":    str,         # e.g. "lc6583477"
+    "composer":    str,
+    "opus":        str,
+    "title":       str,
+    "corpus":      str,         # "lieder" or "quartets"
+    "instruments": list[str],
+    "page":        int,         # 1-indexed
+    "n_pages":     int,
+}
+```
+
+## Usage
+
+```python
+from datasets import load_dataset
+ds = load_dataset("zzsi/openscore")
+example = ds["train"][0]
+example["image"].show()
+```
+
+## License
+
+Source scores: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
+LilyPond renders: same license as source scores.
+
+## Attribution
+
+- OpenScore Lieder corpus: https://github.com/OpenScore/Lieder
+- OpenScore String Quartets: https://github.com/OpenScore/StringQuartets
+- OpenScore Orchestra (Hauptstimme): https://github.com/MarkGotham/Hauptstimme