Echigo Oiwake

...This is the original tune of the current Shinano Oiwake. It was introduced to Echigo and became Echigo Oiwake, and then it moved north along the Japan Sea coast, giving birth to various Oiwake styles such as Sakata Oiwake (Yamagata Prefecture) and Honjo Oiwake (Akita Prefecture), and finally became Matsumae Oiwake and Esashi Oiwake around the Tenpo era (1830-44) when it was established in Hokkaido. One theory is that around the Tenmei era (1781-89), a Kengyo named Matsuzaki Kenryo, born in Niitsu, Echigo, traveled to Hokkaido and began singing Kenryo-bushi (Echigo Matsuzaka Kuzushi), which was then sung by Zatousanoichi from the south (Aomori, Iwate), and became the indirect source of Esashi Oiwake, but this is doubtful.

*Some of the terminology explanations that refer to "Echigo Oiwake" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…現行の《信濃追分》の原調である。これが越後に伝わって《越後追分》となり，さらに日本海沿岸を北上して，その間に《酒田追分》(山形県)，《本荘（ほんじよう）追分》(秋田県)など各種の節回しの追分節を生み，ついに天保(1830‐44)のころに北海道に定着して《松前追分》《江差追分》となった。一説には天明(1781‐89)のころ，越後新津生れの松崎謙良という検校が，北海道へ渡って歌いはじめた《謙良（けんりよう）節》(越後松坂くずし)を南部(青森，岩手)から来た座頭佐の市が歌ったものが，間接に《江差追分》の源流になったともいうが疑わしい。…

※「《越後追分》」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