Don't own an admission key yet? No problem! Ticket office (The virtual concert hall is open twenty-four-seven.)
In order to watch the Gathered Sounds concert recording, you need to purchase an admission key. It can be used as often as you wish. The only technical restriction is that you're just able to use it for one session at a time.
You can obtain a key via Bandcamp, bundled with a Compact Disc recording of the concert – if you like.