Obscure 2 - Delta Beta frat house code

Delta Beta frat house code:
The code to unlock the door at the top of the stairs in the Delta Beta frat house is "Picasso".

Dorm code:
The code used in the dorm is "Freud".

Mei's code to enter the party:
The code to enter the party is "Mozart". To find it, have Mei search with the decryption device.

Safe code:
The code to the safe is "1873". You can find it on the desk in the room you enter from the window. Examine it closely with the woman.