Turn around to walk down the hallway past the kitchen. Stop in the dining room and wait near the piano.
Walk past the bar with the chair/stools. Continue walking straight until you get to a grand piano on the right. Wait there.
Make a 180 degree turn and walk straight past the counter top (on the left) and the circular table (on the right. Continue straight through the door opening, past the bathroom, until you see a piano on your right. There will you have arrived at your destination.