For this and other TLMs in the greater Washington DC area, check out the DC Latin Mass blog.
Especially useful is the linked feature TLM in the next seven days. The blogger does a good job keeping the listings up to date, covering DC and suburban Virginia and Maryland within about a 50 mile radius.
To participate in the discussions on Catholic church music, sign in or register as a forum member, The forum is a project of the Church Music Association of America.