It came up in chat that perhaps we should give a name to the main chat room, like how the main Arqade chat room is called “The Bridge.” Is this a good idea, and if so what names do you recommend?
As I mentioned in my other answer about the site name:
The Practice Room
... in reference to the common experience of musicians of all styles of music!
And if the site ends up being called Music: Theory & Practice, this also becomes a play on "chat room" and the site title. ;-)
The Green Room
The green room is a general term for a room that performers hang out in before they perform.
Although it also fits other performing arts it might fit the bill here. However not every musician is a stage performer and might never be backstage (such as composers, producers, studio musicians, etc). But the chat is kind of backstage to the main site.
Because of its Greek roots: συν (sun - u pronounced like German ü) = together and φωνή (foni) = voice.
I mixed some words up, luckily shevliaskovic caught it. Turns out it is an even better fit, in a chat room voices are together. (Bit awkwardly phrased, my English is not perfect either.)