William Fitzsimmons’ parents were both blind. As such, communicating through sound became especially important. It’s a trait the songwriter has continued to foster as an adult. On his latest record, Lions, Fitzsimmons masterfully connects to his audience through his music, stark, beautiful songs that illuminate the darkest shadows of the human experience and, by extension, his own. Fitzsimmons plays Signal Kitchen in Burlington this Friday, June 13, with songwriter Leif Vollebekk.