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.
"While teachers of the middle way, mind only, transcendent wisdom, mantra, and other schools may have their own assertions, the fulfillment of those intentions is the same. There is not a single thing that is not contained within mind."
(Gampopa to Düsum Khyenpa, in "The First Karmapa", KTD Pub, p254)
“If you recognize the world of appearance and existence as the mind, realize the mind itself as empty, and have no grasping at the superiority of your realizations — this is the ultimate view."
(Chegom Dzongpa, in "The Book of Kadam", Wisdom Pub, p609)