Datasets:

YoloMG
/

musicdatajson

language:
  - all
task_categories:
  - music-transcription
  - generative-modeling
  - audio-processing
  - machine-learning
tags:
  - midi
  - lakh-midi
  - maestro
  - json
  - music-ai
  - symbolic-music
  - datasets
  - cleaned
  - structured
  - mir
  - generative-models
  - deep-learning
pretty_name: Lakh MIDI Cleaned JSON (44k files)
size_categories:
  - 100M<n<1B
license: mit

Lakh MIDI Dataset — Fully Cleaned & Structured JSON (44,129 files)

This dataset is a fully cleaned and normalized version of the Lakh MIDI Dataset.
Each MIDI file has been parsed, validated, and converted into a consistent JSON structure with detailed musical metadata.

✔ 44,129 cleaned JSON files
✔ instrument programs
✔ notes, durations, velocities
✔ tempo curves
✔ key signatures
✔ time signatures
✔ tracks & channels
✔ structural markers
✔ file-level metadata
✔ consistent schema across all files

Suitable for:

Music AI
symbolic modeling
generative models
audio-to-symbolic learning
embeddings
piano transcription
MIR research
supervised ML datasets
music information retrieval

License: Same as original Lakh dataset (public research dataset, metadata extracted legally).
All JSON files are derived from open-source MIDI data.

For commercial or large-scale dataset cleaning services:

— Zeronex