there doesnt seem to be much love for this subclass in deadfire, and chanters in general as full classes. the action economy benefits of passive healing and damage cannot be overstated, as well as the summons including the summon as a chant. with 20 intellect (very easy even early game), you can have two chants completely overlap, which already works wonders with the old seic/aefyllath combo. add on top the acute inspiration from a priest (or any intellect inspiration), you will have three phrases overlapping for a few seconds at a time, and at least two permanently. building a troubador for high level phrases and summons, with tekehu multiclassed to supplement with lower tier phrases makes most of the game a cakewalk.
am i just wrong? is there anything weak about a full class troubador? let me know what you think, this build seems underappreciated