We have 2 separate questions here.

The concert room that BigChuck owns (or is in his name) is password protected or locked. As MMario has said, the password to enter it is "marmot". This room is opened by BC or someone delagated by BC as and when required.

The open session room has no password but it requires a key or code for anyone wishing to open/enter as admin. This code is 8421.

Jon