I think in the following way: the Buddha's teaching can be categorised in three parts: ethics, meditation, insight. Things like dances, rituals, songs, ornaments, etc. fall under the category of ethics. Some of them can be considered bad behaviour and some good behaviour, partially dependent upon precepts and mostly on social norms. This way there is virtually no need to think in terms of culture but rather the Dharma.
"If the Buddha-Nature is seen, there will be no seeing of a nature in any thing."
(Nirvana Sutra, T12n374p521b3; tr. Yamamoto)
"Neither cultivation nor seated meditation — this is the pure Chan of Tathagata."
(Mazu Daoyi, X1321p3b23; tr. Jinhua Jia)
"With sudden enlightenment to Tathagata Chan,
The six paramitas and myriad means are complete within that essence."
(Yongjia Xuanjue, T2014p395c14; tr. from "The Sword of Wisdom")