(大磬, or Dashao 大韶), Daxia (大夏), and Dahu (大濩), Dawu (大武). The Book of Rites records a number of situations where yayue might be performed. These included ceremonies in honour of Heaven and Earth, the gods or the ancestors. There were also detailed rules on the way they were to be performed at diplomatic meetings. Yayue was also used in outdoor activities, such as aristocratic archery contests, during hunting expeditions, and after the conclusion of a successful military campaign. Yayue was characterised by its rigidity of form. When performed, it was stately and formal, serving to distinguish the aristocratic classes. It was sometimes also accompanied by lyrics. Some of these are preserved in the Book of Songs. With the decline of the importance ceremony in the interstate relations of the Spring and Autumn period, so did yayue. Confucius famously lamented the decline of classical music and the rites. Marquess Wen of Wei was said to prefer the popular music of Wey and Zheng to the ancient court music, listening to which he may fall asleep. Much of the yayue of the Zhou dynasty continued into the Qin dynasty. However, some pieces appeared to have been lost or were no longer performed by the Han dynasty, and the content and form of yayue was modified in this as well as the succeeding dynasties. For example, the terrace ensemble (dengge) in yayue involved singings but not string instruments in the Han Dynasty, and in Sui dynasty, singers and string instruments were added to the court ensembles. During the Tang dynasty components of popular music were added to yayue. However, the dominant form of music in the Sui and Tang court was the entertainment music for banquets called yanyue (燕樂), and the term yayue became reserved for the music of Confucian rituals used in temples of the Imperial Family and the nobility as well as in Confucian temples. During the Song dynasty, with Neo-Confucianism becoming the new orthodoxy, yayue was again in ascendancy with major development, and a yayue orchestra in this era consisted of over 200 instrumentalists with many instruments added to the orchestra. Two important texts from the Song dynasty describing yayue performances are Zhu Xi's Complete Explanation of the Classic of Etiquette and Its Commentary (儀禮經傳通解) and Collection of Music (樂書) by Chen Yang (陳暘). In 1116, a gift of 428 yayue instruments as well as 572 costumes and dance