- "How do you justify your violence? Is it for the greater good? Are you doing the world a service?"
- ―Alexander taunting Daniel telepathically when the latter enters the Choir - Main Hall
The Choir was used for torture and contains three rooms, each of which has a different torture device: an Iron Maiden, a Torture Wheel and a Brazen Bull. Extreme methods such as the Brazen Bull were not used to extract vitae but rather to instill terror in the other victims, ensuring maximum vitae could be harvested via other torture methods later on. Pipes run to each of the torture rooms from the entrance, which supposedly carry the screams of torture victims back to the cells in the Nave. These can be used by the player as a guide for navigating the dark, red fog-filled area.
As soon as Daniel enters, Alexander telepathically taunts him about "salvation", blaming him again for all the death and suffering, trying to urge him to abandon taking revenge.
The mushroom for Agrippa's Potion can be found in the Choir. It is located outside the entrance to the chamber with the Brazen Bull.
The Choir is full of Brutes, making it perhaps the most dangerous area in the entire game. Keeping the lantern off is advisable to avoid encounters. Should a Brute encounter ensue, Daniel should not attempt to run -- Brutes can overtake him easily -- but hide and wait behind a nearby pillar for the monstrosity to walk by. Hiding and even running is not too difficult here as the entire area is dark, although these tasks may be difficult at low sanity. It is possible to lure a chasing Brute into a pit, like jumping onto collapsed pillars suspended over the chasm, but one has to be incredibly swift and nimble. 
This is how to move around the whole area without missing any item:
- As you enter the Choir, you will automatically face left. Hug the left wall while walking forward and you will eventually reach the Iron Maiden room. Collect everything, most importantly the Orb piece.
- Exit the Iron Maiden room and move forward. You will pass a bridge to your left. Do not cross it as a monster lurks nearby. Continue moving forward until you reach the edge, then turn right and cross the first bridge you see to your left.
- Collect the items near the rocks in front of you, then move near the wall. Proceed forward while hugging the right wall, and you will eventually reach the Wheel room. Collect everything.
- Exit the Wheel room and continue moving forward with the wall to your right. Once you come to the collapsed pillar, you might hear a Brute growling. Hide for a while until you feel safe, and then cross the pillar to get to the other side. Keep moving forward while hugging the wall to your right until you reach a room with a bunch of mushrooms outside. Break the largest one with your hammer and chipper and take the Poison Gland. Afterwards, enter the Brazen Bull room and collect the last piece of the orb.
- Exit the Brazen Bull room and move forward, still hugging the wall to your right. When you have to choose between going right and going straight, go straight until you reach the edge. Move forward with the edge to your right until you reach a bridge. Slowly cross it and move forward until you reach the exit.
- If you take an immediate left as soon as you enter the Choir, and continue until you reach a corner, a tinderbox can be found on the ground.
- If you turn around and go to the right, a tinderbox can be found in the corner of an endless pit.
- If you cross the bridge, another tinderbox can be found along with some oil. Beware though, as a monster lurks nearby.
- In a corner of the room with the iron maiden.
- Upon exiting the iron maiden, walk until you see a bridge. If you cross it, you should beware, as another monster lurks nearby. As you cross the bridge, take a left and pick up the tinderbox close to the wall.
- Turn around and walk straight until you reach a wall. Turn left until you reach the corner. *A tinderbox should be awaiting your arrival.
- There are two tinderboxes on either side of the endless pit between the Wheel and the Brazen Bull.
- There is one last tinderbox in the bottom left corner of the Brazen Bull room.
- One oil container can be found near the wall, across the bridge on the right side of the choir.
- Another one can be found opposite of the broken down pillar that forms a makeshift bridge.
- In the room with the iron maiden.
- The player can also navigate the Choir simply by following the pipes on the ceiling.
- The music heard in the Choir is the same music heard in the game's menu screen.
- As Daniel approaches the Iron Maiden, it will suddenly open, a terrifying cry will be heard, and blood will burst from it.
- If Daniel tries to get into the Iron Maiden, it will suddenly slam shut, obviously damaging Daniel's health.
- If Daniel uses a tinderbox to light the fire under the brazen bull then the cry of a bull will be heard and Daniel's sanity will fall considerably.
- According to Thomas Grip, the Choir's thick fog and difficulty to navigate was inspired by Silent Hill.
- Brute's shouting can be heard even if it is unencountered by player, and the closer it is, the more frequent and louder it will be.
- The Choir actually doesn't have a physical ceiling. If one were to remove the fog and/or have jump boost hacks, they would notice that the ceiling is in fact, an invisible barrier that cannot be passed. Beyond this is complete darkness.
- As you make your way back to the entrance when you're leaving the choir, the Shadow can be heard roaring, and bones will fall from the ceiling, this will damage your sanity.
- It is possible to fool a Brute to its own demise. Take note that at the top of the map there is a endless pit between two ledges. The ledges are connected by a broken column that can be traversed safely to and from either side. When a Brute comes in pursuit, go to this section of the map and stand on a part of the ledge that slightly juts up and out. From there, jump up onto the fallen pilar. Get the Brute's attention if it had lost you. Watch as it attempts to charge and fail in the process. Make sure to keep a safe distance away or else the Gatherer will take you too!
- It is possible to fool a Brute and simply tease it by entering areas it cannot reach. There are certain pillars that have plant life on them. The game treats the plants as an object, making it possible to climb the vines. Some reach the pipes that can be seen coursing the ceiling. Simply by jumping rapidly while walking into one of these plants can send you soaring high in the air, or simply allowing you to "run up" the vine. Once you've reached a balanced location on the vine, you can safely walk on the pipes. The chains suspending the pipes in air are entities, meaning you can walk right through them, as if they aren't there. Get a brute's attention, and laugh as it tries to reach you and fails. You can use these pipes to find your way to the torture rooms, or simply lead a brute into the void.
- On rare occasions, if the player steps in the water that surrounds the area of the brazen bull and eventually leaves it, splashing sounds can still be heard even if the player isn't stepping in the water anymore. This is also a notable bug in the Back Hall, after the player leaves the unusual fountain.
|The Dark Descent locations|
|Main campaign||Brennenburg Castle locations||Rainy Hall • Old Archives • Entrance Hall • Archives • Wine Cellar • Laboratory • Refinery • Cellar Archives • Archive Tunnels • Back Hall • Storage • Guest Room • Study • Machine Room • Elevator • Prison: Southern Block • Prison: Northern Block • Cistern Entrance • Control Room • Cistern • Morgue • Sewer • Nave • Chancel • Transept • Choir Entrance • Choir - Main Hall • Cells • Inner Sanctum • Orb Chamber|
|Other locations||London • Algeria • Altstadt • Tomb of Tin Hinan • Zimmermann Farm|
|Justine campaign||Cabinet of Perturbation||Cells • Library • Dungeon • Crypt|
|Other locations||Florbelle Estate|