"The walls of the streets of downtown Santiago are covered with stickers, art, words and posters.
The messages are varied and range from "Feminist power" to "All cops are bastards". They have taken over the walls of Zona Cero (Ground Zero), the name given to the area around Plaza de la Dignidad, where anti-government protests have been held - and at times brutally repressed by police - since 18 October.
"The President Sang Amazing Grace" tells the story of the 2015 attack that claimed nine lives at the Emmanuel AME Church in Charleston, SC. It first appeared on Zoe's 2017 album "Small Brown Birds" and was widely played on independent folk radio shows across the US. Since then, the song has taken on a larger life, inspiring a variety of artists and finding its way to new audiences.