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Main Authors: Bae, Joonhyung, Kim, Kirak, Cho, Hyeyoon, Lee, Sein, Choi, Yoon-Seok, Hur, Hyeon, Lee, Gyubin, Maezawa, Akira, Park, Jonghwa, Park, Jaebum, Nam, Juhan
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.23982
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author Bae, Joonhyung
Kim, Kirak
Cho, Hyeyoon
Lee, Sein
Choi, Yoon-Seok
Hur, Hyeon
Lee, Gyubin
Maezawa, Akira
Park, Jonghwa
Park, Jaebum
Nam, Juhan
author_facet Bae, Joonhyung
Kim, Kirak
Cho, Hyeyoon
Lee, Sein
Choi, Yoon-Seok
Hur, Hyeon
Lee, Gyubin
Maezawa, Akira
Park, Jonghwa
Park, Jaebum
Nam, Juhan
contents Piano fingering shapes how a passage can be played, yet it is difficult to label after a performance. An annotator must decide which finger produced each note while reconciling the score, timing, video, and hand motion. We present PiAnnotate, a web-based pipeline for adding expert fingering annotations to the FurElise performance dataset. The tool brings together a piano-roll view, performance video, and a 3D MANO hand mesh so that reviewers can inspect each assignment in musical and physical context. Rather than storing only the final answer, PiAnnotate keeps paired rule-based and human-edited fingering tracks. These paired tracks make the annotation history auditable by showing where a geometric rule was sufficient, where experts intervened, and how labels changed across review passes. As a final diagnostic, we train a small Transformer probe on the paired tracks. The probe improves on the rule baseline on held-out pieces while remaining conservative about changing labels that were already correct, suggesting that the edited labels contain learnable structure rather than only isolated fixes.
format Preprint
id arxiv_https___arxiv_org_abs_2605_23982
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle PiAnnotate: A Web Annotation Tool for Piano Fingering, with a Diagnostic Probe
Bae, Joonhyung
Kim, Kirak
Cho, Hyeyoon
Lee, Sein
Choi, Yoon-Seok
Hur, Hyeon
Lee, Gyubin
Maezawa, Akira
Park, Jonghwa
Park, Jaebum
Nam, Juhan
Sound
Piano fingering shapes how a passage can be played, yet it is difficult to label after a performance. An annotator must decide which finger produced each note while reconciling the score, timing, video, and hand motion. We present PiAnnotate, a web-based pipeline for adding expert fingering annotations to the FurElise performance dataset. The tool brings together a piano-roll view, performance video, and a 3D MANO hand mesh so that reviewers can inspect each assignment in musical and physical context. Rather than storing only the final answer, PiAnnotate keeps paired rule-based and human-edited fingering tracks. These paired tracks make the annotation history auditable by showing where a geometric rule was sufficient, where experts intervened, and how labels changed across review passes. As a final diagnostic, we train a small Transformer probe on the paired tracks. The probe improves on the rule baseline on held-out pieces while remaining conservative about changing labels that were already correct, suggesting that the edited labels contain learnable structure rather than only isolated fixes.
title PiAnnotate: A Web Annotation Tool for Piano Fingering, with a Diagnostic Probe
topic Sound
url https://arxiv.org/abs/2605.23982