Key Characteristics of Hymns
Tatsuo Kamitani* and Minoru Matsuda**
*School of Management and Business Administration, Kyoto Sosei University, Fukuchiyama, Kyoto 620-0886, Japan
**Graduate School of Engineering, Osaka Electro-Communication University, Neyagawa, Osaka 572-8530, Japan
The authors propose a way of patterning the bars of monophonic melodies in hymns and finding keys from such patterns. The authors represent monophonic melody bars on a vector showing the duration of pitch chroma contained in each bar. In experiments, the authors patterned bars of 352 four/four beat hymns, defined the distance between the bar key and melody, and found they key from this, correctly 83.1% of the time. The authors also propose a way to determine the maximum likelihood of a contaminated normal distribution of distance between patterns using an EM algorithm. Key characteristics of hymns were then studied using this method.
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