Goraku - Kyogaku

Japanese: 郷楽 - きょうがく

…After the unification of Silla, the gayageum, along with the xuegeum and biwa, became a representative stringed instrument called the samisen, and was used to accompany songs and dances along with the vertical flutes called the sambuk (large, middle, and small), clappers, and drums. The gayageum was widely used as a representative instrument of hyanggaku (Korean music corresponding to Tang music), especially in the artistic vocal music that became popular from the mid-Joseon period, and was used as an important accompaniment along with the xuegeum. The gayageum also played an important role in instrumental music such as Yeongsan Hoesang and Yominrak, which lost their lyrics and became instrumental music after the late Joseon period.…

From [Korean Music]

…In addition, the Song Dynasty's Shigaku (comic music) was also introduced, and the music that was introduced from China, together with that from the previous dynasty, was called Tang music. The ancient indigenous music was called Hyang music, and the newly created music was also called Zong music. In addition, court dance was called Chongjel (presentation talent), and court music, including songs, dance, and music, was classified into Gagaku, Tang music, and Hyang music. …

*Some of the terminology that refers to "Goraku" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…新羅統一以後，伽倻琴は玄琴，琵琶とともに〈三絃〉と称する代表的弦楽器となり，〈三竹〉(大笒（たいきん），中笒，小笒)と称する縦笛や，拍板，大鼓といっしょに歌舞の伴奏に用いられた。高麗，李朝を通じて伽倻琴は代表的な郷楽(唐楽に対応するもので朝鮮固有の音楽)楽器として広く愛用されたが，とくに李朝中期から盛んになった芸術的声楽曲である〈歌曲〉では，玄琴とともに重要な伴奏楽器として用いられている。また，李朝後期以後歌詞を失って器楽化した《霊山会相》や《与民楽》などの器楽曲でも伽倻琴が活躍している。…