https://en.wikipedia.org/wiki/Thomas_Campion
https://imslp.org/wiki/Category:Campion,_Thomas
https://web.archive.org/web/20080619064008/http://www.mylinuxisp.com/~tonyc/musgitar.htm#campion
https://librivox.org/author/6207?primary_key=6207&search_category=author&search_page=1&search_form=get_results