Put the RULER between the door (W); open the door.
Take the CHAIN (X), GAS CAN (Y), and MIRROR (Z).
Go to the Atelier.
Connect the MIRROR to the stand (A).
Take the MASK HALF (B); take the HALF OF KEY (C).
Combine the 2 HALVES OF KEY to receive the ROOM KEY.
Go to the Hotel.
Insert the ROOM KEY into the slot (D).
Enter the room.
Play the HOP.
You receive the HERALDIC GRYPHON and the MUSICAL NOTE (E).