http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nội dung chính của sách là bộ sưu tập lời bài hát của hát ví ở Bắc Giang. Trong bộ sưu tập có 23 chủ đề khác nhau.
Lịch sử và phê bình,History and criticism