Yayue → Yanyue
function and contextform and structureinstrumentationstrength: mediumscholarly consensus581–907patronagepedagogynotation
Mechanism
Sui–Tang court administration keeps yayue as Confucian ritual and stages yanyue as banquet entertainment in the same palace system. Tang sources note popular and foreign material entering court music; yanyue is the sounding entertainment recoding of that court. Strength medium. Not parentage of repertory piece-for-piece: ritual hymn and banquet suite remain different jobs.
Evidence
Grove on Tang reservation of yayue for sacrifice and yanyue as the dominant banquet form; yuebu as the bureaucratic carrier; later Japanese tōgaku taking the banquet wing (yanyue gagaku), Korean ritual taking the yayue wing (yayue aak).
- Zhou–Han ritual court music and Tang banquet music as two bureaus of one imperial system, with popular material admitted into yayue and yanyue as the entertainment recoding
Debate
Whether coexistence in one court is influence. The hop is institutional and functional recoding (ritual court music → banquet bureau), not a claim that banquet suites are rewritten yayue hymns. Do not reverse-parent gagaku from yayue; the Japanese sounding parent is yanyue.
Mediators
institution: Sui–Tang court music offices (yuebu)