Repetition is a basic indicator of musical structure. This study introduces new algorithms for identifying musical phrases based on repetition. Phrases combine to form sections yielding a two-level hierarchical structure. Automatically detected hierarchical repetition structures reveal significant interactions between structure and chord progressions, melody and rhythm. Different levels of hierarchy interact differently, providing evidence that structural hierarchy plays an important role in music beyond simple notions of repetition or similarity. Our work suggests new applications for music generation and music evaluation.
翻译：重复是音乐结构的一个基本指标。本项研究引入了用于识别基于重复的音乐词组的新算法。 词组组合成产生两级等级结构的章节。 自动检测到的等级重复结构揭示了结构和和和弦发展、旋律和节奏之间的重要互动。 不同层次的等级结构相互作用不同,提供了结构等级在音乐中除简单的重复或类似概念之外发挥重要作用的证据。 我们的工作为音乐的产生和音乐评价提出了新的应用。
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