Traditional culture in Laos has been heavily influenced by various strains of Khmer, Vietnamese and Thai cultures. The lowland Lao share the same ancestry as many Thai tribes, so the similarities between Lao and Thai culture are especially strong. This can be seen in Lao sculpture, classical music, dance-dramas and cuisine. Lao folk music is more indigenous, based around the khaen (a double row of bamboo reeds fitted into a hardwood sound box). Folk music is often accompanied by dancing or bawdy theatre. The focus of most traditional art has been primarily religious and includes wats (temples), stupas and several distinctively Lao representations of Buddha. The Lao remain skilful carvers and weavers, but traditional silversmithing and goldsmithing are declining arts.