Founded in 1964, Cwmbran Male Voice is probably the Torfaen choir I'm most familiar with. My granddad, Ralph Powell, has sung with them for many years so we've been to watch them on a fairly regular basis!
Cwmbran MVC has about 40 members who practice at 7:30pm on Monday and Thursday evenings at the Salvation Army citadel in Old Cwmbran. Find out more about the choir on Facebook and Twitter. Their website, cwmbranmalechoir.co.uk, seems to be down at the moment.