Junyan: MIREX 2026 Music Structure Analysis results

2026-10-14T18:52:48Z

MIREX 2026 Music Structure Analysis results

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== Submissions ==

{| class="wikitable"
|-
! Submission
! Title
! PDF
! Authors
|-
| style="vertical-align:bottom; background-color:#F8F9FA; color:#222;" | Baseline: SongFormer
| style="vertical-align:bottom; background-color:#F8F9FA; color:#222;" | SongFormer: Scaling Music Structure Analysis with Heterogeneous Supervision
| [https://github.com/ASLP-lab/SongFormer Link]
|
|-
| SCALE
| The SCALE System for MIREX 2026 Music Structure Analysis
| [http://futuremirex.com/portal/wp-content/uploads/2026/music-structure-analysis/SCALE.pdf PDF]
| Hongbing Li, Yaolong Ju
|-
| songmamba
| SongMamba: Efficient Music Structure Analysis via Bidirectional State-Space Modeling
| [http://futuremirex.com/portal/wp-content/uploads/2026/music-structure-analysis/songmamba.pdf PDF]
| Yuan Wang, Zhiping Qiu, Shenyang Xu, Yan Han, Yuanfeng Jiang, Xiaobing Li, Wei Li
|}

== Test Set ==

* '''Harmonix Set (test split)''': 200 songs of the relabeled Harmonix Set ([https://huggingface.co/datasets/m-a-p/harmonixset_bigvgan m-a-p/harmonixset_bigvgan], audio re-synthesized with BigVGAN), labels mapped to 7 classes (intro, verse, chorus, bridge, inst, outro, silence). These are the songs and audio of [https://huggingface.co/datasets/ASLP-lab/SongFormBench SongFormBench]-HarmonixSet (identical files; annotations identical except for corrected endings of 2 songs).

For each metric, the best result is shown in bold.

== Harmonix Set (test, 200 songs) ==

{| class="wikitable" style="text-align:right;"
|- style="font-weight:bold; text-align:left;"
! style="vertical-align:bottom;" | Group
! style="vertical-align:bottom;" | ACC
! style="vertical-align:bottom;" | HR.5F
! style="vertical-align:bottom;" | HR3F
|- style="vertical-align:bottom;"
| style="text-align:left;" | SCALE
| 0.799
| 0.728
| 0.828
|- style="vertical-align:bottom;"
| style="text-align:left;" | songmamba
| 0.776
| '''0.739'''
| '''0.840'''
|- style="vertical-align:bottom;"
| style="text-align:left;" | Baseline: SongFormer
| '''0.802'''
| 0.704
| 0.798
|- style="vertical-align:bottom;"
| style="text-align:left;" | Baseline: MusicFM (MIREX 2025, reported)
| 0.705
| 0.644
| 0.710
|}

== Notes ==

* Baseline SongFormer was also trained on SongFormDB, which may overlap with some popular song datasets to a small extent.
* SCALE was trained on SheetSage-MSA, which may overlap with some popular song datasets to a small extent.

2026:Music Structure Analysis Results - Revision history

Junyan: MIREX 2026 Music Structure Analysis results