为非唯一乐句对齐设计灵活编码模型，支持排练与即兴伴奏场景。
A Flexible Encoding Model for Non-Unique Note Alignments
- 引入虚拟谱面与虚拟演奏节点，实现多对一音符对齐
- 扩展'section'行语义标注，覆盖非谱面指示的演奏区域
- 适用于钢琴排练与通奏低音即兴等复杂音乐实践
符号化音乐对齐将演奏中的音符与乐谱对应起来。现有对齐编码格式仅支持一对一映射，但排练中的重复练习、通奏低音即兴演奏等音乐实践需要更灵活的编码方式。本文提出对Match文件格式的最小化、向后兼容扩展，支持非唯一且语义复杂的对齐关系。引入两种虚拟指针音符：虚拟谱面音符与虚拟演奏音符，可编码演奏音符与谱面音符间的多重关联。同时扩展Match文件的' section'行，增加对乐谱未标示的演奏区域的语义注释。通过钢琴排练和通奏低音两个典型用例验证了该扩展的有效性。
原文摘要 · Abstract (English)
Symbolic music alignment links notes in a symbolic performance to their counterparts in a score. While existing alignment encoding formats provide unique correspondences between these notes, there are various musical practices and forms such as practice repetitions in rehearsal and improvised realizations in basso continuo that require a more flexible approach to encoding their alignments. In this paper, we propose a minimal, backward-compatible extension to the Match file format to support such non-unique and semantically complex alignments. We introduce two virtual pointer notes - virtual score notes and virtual performance notes - which allow to encode multiple links between performance and score notes. In addition we expand the Match file's 'section' line to include semantically meaningful annotations of performance regions beyond score-indicated musical repetitions. We further demonstrate the utility of these extensions through two representative use-cases in piano rehearsal and basso continuo.
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