There are two mailing lists CHaT uses for communication:

Announce	Meeting Announcements and "official" business Extremely low-volume (approx. 2 messages per month) Anybody can subscribe and unsubscribe Only Board Members can post Recipient List is not made publicly available Archives are available for Members
Discuss	Chicago Music Discussion Low-volume (approx. 20 messages per month) Anybody can subscribe and unsubscribe Only Board Members can post Recipient List is not made publicly available Archives are available for Members