Mage's Ballad works fine as is. It is a VERY big boost especially in chaining / long fights where you don't see much/any out of combat mana regen.
-Speed Running (whm holy-spam!)
-Titan HM
-Coil (various places)

Foe Requiem: +10% elemental damage (+20% with battle voice), works GREAT with Monk / Black Mage... lackluster with other classes
Army's Peon: Active TP regeneration, works fine... not often needed
Rain of Death: stacking dmg debuff, works fine
Blunt Arrow: off GCD silence, works fine

Bard has a LOT of support, that's why SE is considering if they gave it TOO much damage and looking at how to scale it back... and hopefully keep it in the same ballpark as other classes.