Upload en_augmented dataset (117 MIDI files)

README.md

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+---
+license: cc-by-4.0
+task_categories:
+  - audio-classification
+tags:
+  - music
+  - piano
+  - midi
+  - error-detection
+pretty_name: EN-augmented Piano Performance Dataset
+size_categories:
+  - n<1K
+---
+
+# EN-augmented: Expert-Novice Piano Performance MIDI
+
+Piano performance MIDI recordings with mistake annotations from beginner players.
+
+- **117 MIDI files** across 7 songs
+- **34 annotated pairs** (performance + annotation marking mistake regions)
+
+## Songs
+
+| Song | Performances | Annotated |
+|------|-------------|-----------|
+| CarelessLove | 11 | 4 |
+| CielitoLindo | 6 | 3 |
+| LavendersBlue | 17 | 5 |
+| OverTheWaves | 11 | 6 |
+| SheWoreAYellowRibbon | 13 | 6 |
+| TheBlues | 17 | 2 |
+| TheEntertainer | 8 | 8 |
+
+## Annotation format
+
+Companion files named `*-annot.mid` contain pitch=0 note events marking mistake time regions.
+
+## Structure
+
+    Recordings_and_Alignments/{Song}/{Song}-XX.mid
+    Recordings_and_Alignments/{Song}/{Song}-XX-annot.mid
+
+## Reference
+
+Expert-Novice augmented dataset for piano performance error detection.
+Part of [EVPMR](https://github.com/anusfoil/eval-piano-midi-repr) benchmark.