A good dungeon crawl. Depending on the party make up, this will either be fast for the party or can be VERY hard and deadly. Not sure why others felt this was disjointed from the trilogy. It seems to fit just fine to me, though I do still find the overall premise (Artor is looking to move) a bit weird since he shouldn't need the adventurers to do this.
There's a lot of info about Shar having been involved, but little payoff during the adveture. It should have been clearer that some of the vampire spawn were bullywugs. Also, one of the bonus objectives with the forge feels too important to have been a bonus objective. Otherwise, good adventure.
Incidentally, I used an online virtual piano to play the musical notes for the players.
[4 of 5 Stars!]