Datasets:

ben2002chou
/

CocoChorales-E

pretty_name: CocoChorales-E
license: cc-by-4.0
task_categories:
  - audio-classification
  - audio-to-audio
tags:
  - music
  - cocochorales
  - error-detection
  - multimodal
configs:
  - config_name: default
    data_dir: viewer_preview

Viewer note: default uses viewer_preview/ for responsive audio playback. Full training/evaluation files remain available in the original folder structure.

CocoChorales-E

CocoChorales-E subset used by the LadderSym training pipeline.

Paired Inputs for Error Detection

The model takes paired inputs:

mistake: performance audio/MIDI containing musical errors
score: paired reference score audio/MIDI (target/correct context)

Error supervision is provided with labels:

label/extra_notes
label/removed_notes
label/correct_notes

Full Structure (Code-Compatible)

This repo preserves the filesystem layout expected by the training loader:

mistake/<track_id>/...
score/<track_id>/...
label/{extra_notes,removed_notes,correct_notes}/<track_id>/...
split.json (included at repo root)

Split/Size Summary

Rows from cache logic:

train: 36,236
validation: 4,504
test: 4,284

Selected track IDs: 11,256

Quick Start (Directly with Existing Code)

from huggingface_hub import snapshot_download

root = snapshot_download("ben2002chou/CocoChorales-E", repo_type="dataset")
# set root_dir = root
# set split_json_path = f"{root}/split.json"

Project Link

https://github.com/ben2002chou/LadderSYM

Citation

@inproceedings{
chou2026laddersym,
title={LadderSym: A Multimodal Interleaved Transformer for Music Practice Error Detection},
author={Benjamin Shiue-Hal Chou and Purvish Jajal and Nicholas John Eliopoulos and James C. Davis and George K Thiruvathukal and Kristen Yeon-Ji Yun and Yung-Hsiang Lu},
booktitle={The Fourteenth International Conference on Learning Representations},
year={2026},
url={https://openreview.net/forum?id=cizuvfyQXs}
}