用计算方法量化印度古典唱腔的节奏自由度，捕捉表演者风格差异。
Expressive Timing in Hindustani Vocal Music
- 通过计算分析同一曲目在不同演奏中的时间偏差模式。
- 发现专家演唱常偏离固定节拍，形成独特风格印记。
- 为印度古典音乐生成建模与分析提供新方法，适合音乐信息检索研究者。
节奏动态是不同文化音乐表现力的重要线索。在印度北传音乐中，专家歌手常对伴奏塔布拉鼓的稳定节拍做出有意偏离，不严格对齐。通过对比同一作品（如巴尼亚什）的不同演奏可明显看出这一现象。本文提出一种定量研究方法，利用计算技术分析两个著名《拉格·亚曼》中流行巴尼亚什的演奏实例，有效捕捉了体现风格约束及表演者个人特征的时间变化细节。该工作为印度古典音乐表演的分析与生成建模迈出了关键一步。
原文摘要 · Abstract (English)
Temporal dynamics are among the cues to expres siveness in music performance in different cultures. In the case of Hindustani music, it is well known that expert vocalists often take liberties with the beat, intentionally not aligning their singing precisely with the relatively steady beat provided by the accompanying tabla. This becomes evident when comparing performances of the same composition such as a bandish. We present a methodology for the quantitative study of differences across performed pieces using computational techniques. This is applied to small study of two performances of a popular bandish in raga Yaman, to demonstrate how we can effectively capture the nuances of timing variations that bring out stylistic constraints along with the individual signature of a performer. This work articulates an important step towards the broader goals of music analysis and generative modelling for Indian classical music performance.
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