This is the proceedings of the 19th conference of the Foundation for Endangered Languages, devoted to music and song, and their benefits to language traditions, and held on 7-9 October 2015 in New Orleans, Louisiana, USA. It contains 30 articles on various languages world wide. 3 major themes are: how music and song act as vehicles to support language traditions; how music and song are in themselves a form of celebration; and how modern - often global - musical styles may be enlisted to make endangered languages more attractive and accessible to new generations.