I keep calming spells and mez (singled and AoE) in the other spots. I don't really use them often when I pull, it's much easier to dump the mobs using Fading Memories and then pull in the single once they split.
I don't worry about dots for the bard, I have enough other DPS that it's not an issue. My main goal for the bard is to buff the group and pull. She does do DPS to help out, but again from my perspective not the primary function. I'm going to twist in Arcan Ballad as well.
I found MQ2Twist easier than medley...but whatever works best for you.