While Dirges are more focused on using songs to damage enemies and enhance their physical attacks, Troubadours focus on spells that enhance their party members in a plethora of ways. Troubadours have one of the largest arrays of group offensive and defensive buffs. They have a fair amount of damage dealing abilities, but this is mainly for soloing purposes.
The Troubadour was made to group, and most groups will welcome a Troubadour with open arms. Troubadours not only have spells that increase the stats and resistances of their groups, they also have songs that shorten the recast time of spells of party members, increase the power regeneration of party members and even songs that increase their movement speed out of combat.
The Troubadour is also able to wear chain armor, but is much less able to take damage than their Dirge brothers. Most of their physical abilities also debuff the target, granting them increased survivability. In groups, Troubadours dealing damage should always be mindful of their threat, as they have only one spell that allows them to decrease their threat.