{"ID":2870177,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.12667","arxiv_id":"2509.12667","title":"Osu2MIR: Beat Tracking Dataset Derived From Osu! Data","abstract":"In this work, we explore the use of Osu!, a community-based rhythm game, as an alternative source of beat and downbeat annotations. Osu! beatmaps are created and refined by a large, diverse community and span underrepresented genres such as anime, Vocaloid, and video game music. We introduce a pipeline for extracting annotations from Osu! beatmaps and partition them into meaningful subsets. Through manual analysis, we find that beatmaps with a single timing point or widely spaced multiple timing points (\u003e=5 seconds apart) provide reliable annotations, while closely spaced timing points (\u003c5 seconds apart) often require additional curation. We also observe high consistency across multiple annotations of the same song. This study demonstrates the potential of Osu! data as a scalable, diverse, and community-driven resource for MIR research. We release our pipeline and a high-quality subset osu2beat2025 to support further exploration: https://github.com/ziyunliu4444/osu2mir.","short_abstract":"In this work, we explore the use of Osu!, a community-based rhythm game, as an alternative source of beat and downbeat annotations. Osu! beatmaps are created and refined by a large, diverse community and span underrepresented genres such as anime, Vocaloid, and video game music. We introduce a pipeline for extracting a...","url_abs":"https://arxiv.org/abs/2509.12667","url_pdf":"https://arxiv.org/pdf/2509.12667v1","authors":"[\"Ziyun Liu\",\"Chris Donahue\"]","published":"2025-09-16T04:44:49Z","proceeding":"cs.SD","tasks":"[\"cs.SD\"]","methods":"[\"LoRA\"]","has_code":false,"code_links":[{"ID":609741,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_id":2870177,"paper_url":"https://arxiv.org/abs/2509.12667","paper_title":"Osu2MIR: Beat Tracking Dataset Derived From Osu! Data","repo_url":"https://github.com/ziyunliu4444/osu2mir","is_official":false,"mentioned_in_paper":false,"mentioned_in_github":true,"github_stars":0}]}