Law & Order: Justice Is Served - Passwords

Piano Code:
The code to the piano lock box in the victims apartment: C, , C, , C, , B, C, , D , E , D, C, .

Typewriter Puzzle:
At the end of the investigation, you need to choose the right letters on the keyboard sent from the crime lad. There are 12 letters each stacked 3 high.

First line ... second H, third Y, third Q, first A, first S, third J.
Second line first F, second R, first E, second T, second C, third O.

Mark's Office key Word:
In the Mark's Office the key word for the computer is " babe "