分析墨西哥民歌旋律特征，揭示其音域、复杂度与音程分布规律。
Music Information Retrieval on Representative Mexican Folk Vocal Melodies Through MIDI Feature Extraction
- 通过MIDI提取音域、音高熵和音程分布特征
- 音域跨度8至27个半音，音高熵最高者为《Somos Novios》
- 音程多为纯一度、大小二度，适合大众传唱，但与流行度无关
本研究利用MIDI特征提取方法分析代表性墨西哥民歌的旋律特征，考察音域范围、音高类熵值及音程分布，并探讨这些特征与歌曲流行度（以Spotify播放量衡量）的关系。使用MATLAB与MIDI Toolbox进行特征提取与统计分析。结果表明，音域跨度在8至27个半音之间，显示该音乐风格具有多样化的创作手法与声乐要求；音高类熵值呈现广泛差异，阿曼多·曼萨涅罗的《Somos Novios》熵值最高，反映其旋律结构更复杂多变，而《La Bamba》等传统曲目熵值较低，显示其旋律更简单重复。音程分布以纯一度（P1）、大二度（M2）和小二度（m2）为主，体现对邻近音程的偏好，有助于旋律的易听性与传播性。然而，统计分析未发现音域或熵值与Spotify播放量存在显著相关性。
原文摘要 · Abstract (English)
This study analyzes representative Mexican folk vocal melodies using MIDI feature extraction, examining ambitus, pitch-class entropy, and interval distribution. It also explores the relationship between these features and song popularity, as measured by Spotify plays. The study employs MATLAB and the MIDI Toolbox for extracting musical features and performing statistical analysis. The findings reveal a significant variation in ambitus, with values ranging from 8 to 27 semitones, indicating a diverse compositional style and vocal demand across the genre. The analysis of pitch-class entropy showcases a broad spectrum of melodic complexity, with Armando Manzanero's `Somos Novios' displaying the highest entropy, suggesting varied and complex melodic structures, while traditional pieces like `La Bamba' exhibit lower entropy, indicating simpler, more repetitive patterns. The interval distribution predominantly features prime intervals (P1), major and minor seconds (M2, m2), pointing to a compositional preference for close, contiguous intervals that contribute to the melodies' accessibility and appeal. Statistical analysis do not establish a significant correlation between the ambitus or entropy and the number of Spotify plays.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品；中文卡片由大模型生成，请以原文为准。