{"url":"/dataset/maps","name":"MAPS","full_name":"Midi Aligned Piano Dataset","description_markdown":"MAPS – standing for MIDI Aligned Piano Sounds – is a database of MIDI-annotated piano recordings. MAPS has been designed in order to be released in the music information retrieval research community, especially for the development and the evaluation of algorithms for single-pitch or multipitch estimation and automatic transcription of music. It is composed by isolated notes, random-pitch chords, usual musical chords and pieces of music. The database provides a large amount of sounds obtained in various recording conditions.","description_withheld":null,"homepage":"","introduced_date":"2010-01-01","introduced_date_note":null,"introduced_by":null,"license":null,"modalities":[],"tasks":[{"name":"Music Transcription","url":"/task/music-transcription","datasets_with_task":"/datasets/task/music-transcription"}],"languages":[],"variants":["MAPS"],"data_loaders":[{"repo":"https://github.com/sibwa0/Deep-Neural-Networks-for-Piano-Music-Transcription","url":"https://github.com/sibwa0/Deep-Neural-Networks-for-Piano-Music-Transcription","frameworks":["tf","pytorch"]}],"num_papers_in_archive":7,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/music-transcription-on-maps","task":"Music Transcription","dataset_variant":"MAPS","rows":6,"metrics":["Onset F1"],"first_row_in_archive_order":{"model":"Transkun V2 (SemiCRF) with Data Augmentation","paper":"/paper/scoring-intervals-using-non-hierarchical","metrics":{"Onset F1":"90.38"},"code_links":[{"title":"yujia-yan/transkun","url":"https://github.com/yujia-yan/transkun"},{"title":"yujia-yan/skipping-the-frame-level","url":"https://github.com/yujia-yan/skipping-the-frame-level"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/yourmt3-multi-instrument-music-transcription","title":"YourMT3+: Multi-instrument Music Transcription with Enhanced Transformer Architectures and Cross-dataset Stem Augmentation","date":"2024-07-05","rows_on_this_dataset":2,"code_links":1,"syntology":null},{"paper":"/paper/scoring-intervals-using-non-hierarchical","title":"Scoring Time Intervals using Non-Hierarchical Transformer For Automatic Piano Transcription","date":"2024-04-15","rows_on_this_dataset":2,"code_links":2,"syntology":null},{"paper":"/paper/a-data-driven-analysis-of-robust-automatic","title":"A Data-Driven Analysis of Robust Automatic Piano Transcription","date":"2024-02-02","rows_on_this_dataset":1,"code_links":0,"syntology":null},{"paper":"/paper/automatic-piano-transcription-with","title":"Automatic Piano Transcription with Hierarchical Frequency-Time Transformer","date":"2023-07-10","rows_on_this_dataset":1,"code_links":1,"syntology":{"read_at":"2026-09-24T18:15:14+00:00","samples_harvested":5,"samples_ran":5,"samples_unverified":0,"pointer_only_for_licence":0,"claim":"Per-sample execution on synthesized fixtures; not a correctness claim."}}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":1,"samples_harvested":5,"samples_ran":5,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}