[3] A while ago, even jong (종, bell) was referred to as "soebuk" (쇠북, metal drum) and included in the buk category.

[3] During the Unified Silla period (668–935), daego (대고, 大鼓) or keunbuk, meaning "a big drum", was used along with a percussion instrument named bak (박, 拍) in a music played by Samhyeon samjuk (삼현삼죽, 三絃三竹) which comprises samhyeon, three string instruments such as geomungo, gayageum, and hyangbipa and samjuk such as daegeum, junggeumand sogeum.

[4] In the Goryeo period (918–1392), as dangak and aak were introduced to Korea from China, a lot of buk such as janggu, gyobanggo, jingo began to be used for the court music.

[3] In the Joseon period, scores of buk were used for the royal court music including janggu, jwago, yonggo, gyobanggo, jingo, jeolgo, nogo and others.

[3] While there are twenty types of buk used in the present Korean traditional music, most commonly used buk are jwago to perform Samhyeon yukgak (삼현육각, 三絃六角), yonggo for marching music, gyobango for bukchum (북춤, drum dance), beopgo for Buddhist ritual ceremonies, sogo used by Namsadang, and street musicians, soribuk or called gojangbuk for pansori, maegubuk (or called nongakbuk) used for nongak, and motbanggo used by farmers as working.