Yesterday we've done AK with DF in 30 minutes with 2 bards. The tank immediatly asked if we were new (he would have left if yes), then he rushed like crazy. I wear some toxotes, DL and crafted jewellery with materias + Ifrit weapon. The other bard had quite the same gear, and Garuda Weapon. For Demon Wall, the tank (who had relic) told us to focus the boss. When the bees came he tanked them and we easilly burned down the boss. One of the easiest and fastest AK run I had.

The only fight where "bards only" have been a problem is HM Ifrit, to burn the nails, but with good gear it might be doable. Sorry for my english.