for you bard having trouble getting through this, try an AE group. my real life sister plays a chanter and we were having trouble getting her through in a trditional group. i grabbed two wizards, a cleric, and a warrior and we set out to AE it. we positioned in the middle of the room and the warrior grabbed something and i assisted while my sister began the chanter stun trio (i forget what the stuns are called /shrug) and runed between EACH round. I was playing denons debreavment, melody of mischief, call of flame (which doesnt work on point plank AE..ghey!), and chorus of mar while i assisted the warrior. this worked so well it was almost funny, we killed the waves in like 5-10 seconds which seemed to give us like a whole minute to med in between. the part that was kinda tricky was the boss, since the wizards were pretty much out of mana. at this point your chanter will probably tash and slow, and die. my sister had a real hard time not getting aggro from the boss...she even tashed, boggled, slowed, boggled blah blah blah and still got summoned and slaughtered. in the end we rezed her in after the kill and she got her mark of execution. if i were to do it all again i would say have the chanter chain rune the main tank to save some mana for the healer and give the wizards time to med for a good blast. if your chanters too cheap to buy components let them die and just slow the stupid guy yourself :P.
p.s. rampage is a real pain in the butt with the boss, most likley the bard or chanter will be on rampage. guess who wins? YOU. I had my rune already when i did this so i told the cleric to let me eat the rampage and to not waste mana healing me, id get a rez after. luckily i didnt die, had about 200 hp at the end.