Go into the large room with a large rug, and keep going through the room to the door on the other end, into a room with a piano, and wait at the entrance.
Turn around until you can see a large wooden round table ahead of you and towards the right. There will be an arched opening directly ahead of you on the opposite wall of the room you're facing. Head towards that opening and go through it until you reach another room through a doorway.
Go straight until you go through the round opening and all the way straight until you get to a very large room with green carpet. Wait there.