Briefly reading through forums, Foe's Requiem appears to be the most desirable song due to the no damage reduction. Mage's Ballad is desired for when something happens, and healers could use a touch of aid. Army's Paeon is for letting monk/rogues/etc go berserk, and for tanks to aggro better?
-I'm mostly curious about how the mana based tanks feel about Mage's Ballad. Do you even need it, would you tank better with it?
-Just to confirm, does The Wanderer's Minuet render you immobile? The wiki didn't include it in the description.
-How do the TP based classes feel about Army's Paeon in general? Do you feel insulted like some healers or does it free you of constraints?
-Foe's Requiem is great, but I'm worried about the aggro it draws. (Feel free to comment)

I don't really play/understand other classes, so any input is appreciated. Though everyone is civil, lets try not to accidentally miscommunicate. We all know that text represents itself differently across many perspectives.