Ozashikinagauta - Long song in a Japanese room

...Also, in an attempt to show the subtleties of change in the accompanying music, it was around this time that the interplay between Bungo-bushi style joruri (Tokiwazu, Tomimoto, Kiyomoto) and Nagauta became popular, and pieces such as "Shitadashi Sanbaso", "Sarashime" and "Kakubei" were performed in this interplay. Furthermore, during this period, Nagauta for appreciation (Ozashiki Nagauta) was born, which was free from the constraints of accompanying dance music. This was a new trend in Nagauta that was born from the heightened artistic ambition of Nagauta performers, and around this time pieces such as "Oimatsu", "Azuma Hakkei", and "Gekibushi Sha Tsukiyo" were composed. ...

*Some of the terminology used in reference to "Ozashiki Nagauta" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…また，伴奏音楽の面でも変化の妙を示そうとして豊後節系浄瑠璃(常磐津，富本，清元)と長唄との掛合が流行したのもこのころで，《舌出三番叟（しただしさんばそう）》《晒女（さらしめ）》《角兵衛》などが掛合で上演された。さらにこの時代には，舞踊の伴奏音楽という制約から離れた鑑賞用長唄(お座敷長唄)が誕生した。これは長唄演奏者の芸術的意欲の高揚から生まれた新傾向の長唄で，このころには《老松（おいまつ）》《吾妻八景（あづまはつけい）》《外記節石橋（げきぶししやつきよう）》などが作曲されている。…

※「お座敷長唄」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報