A good friend of mine once summed up the role of Chanter for me, and for whatever reason, I still remember his words today.
“It’s about versatility, Sabahla. With one hand, the Chanter will bring down a staff on their enemy, while the other summons a shield to protect a fallen comrade, all the while shouting words of encouragement to the rest of his men.”
It wasn’t until two years later that I actually met a Chanter for the first time, and understood how little he was exaggerating. The Chanter’s ethos is one of duty and faith, disciplining his or her body and soul harshly. While their abilities may cross into several more specialised roles, still the chanter has unique skills that any group of adventurers would be grateful for.