The Utai Densho (books of secrets of Noh songs), written during the late Muromachi and early Edo periods, include in some places kana syllabary charts that contain, in their rows and columns, pronunciation notations unique to the world of Noh songs. This paper closely examines these pronunciation notations and shows that they can be split into two general groupings.
One of these groupings is strongly influenced by Siddham studies, with columns showing ‘口’(mouth), ‘喉’(throat), ‘舌’(tongue), and ‘唇’(lips) and rows showing ‘上音’(high tones), ‘中音’(medium tones), and ‘下音’(low tones). The other grouping is that of the Jinkaishō school of Utai Densho, accepted as an authority beginning in the late Muromachi period, with columns showing ‘喉’, ‘舌’, ‘歯’(teeth), ‘腮’(jaw), ‘鼻’(nose), and ‘唇’and rows showing ‘ひらく’(open), ‘ほそむ’(narrow), and ‘すぼむ’(pucker).
Although the kana syllabary chart of the Jinkaishō school of Utai Densho and its pronunciation notations is neither cited directly in the Utai Densho nor in the academic writings of the Edo period, its influence can be found here and there. For example, the explanation of articulation under the ‘腮’(jaw) column is shared in a description in the Kenshuku-ryōkoshū (蜆縮涼鼓集), and in ascertaining the pronunciation of Japanese in the Edo period, the Jinkaishō school of Utai Densho may be considered to have had an influence that was not insignificant.
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