This is Lai Sootsanaen สุดสะแนน played to the Lum Tang Sun ລຳ ທາງ ສ້ັນ, ลำทางสั้น in Morlam Gon ໝໍລຳກອນ, หมอลำกลอน Lao poetry, and dance of courtship. Khaen/Khene playing by Khaen Master หมอแคน Jonny Olsen. There are many styles of khaen playing and this is just one of them.