Here's a link to a page from the Cathedral website about a Christmas carol service which will feature carols from the Cornish diaspora - which were taken abroad by Cornish emigrants and have survived and/or evolved. The carols will be sung by a large community choir and this is a call for singers.
The service will be held on Thursday 20th December at 7.30pm (till 9pm).
http://www.trurocathedral.org.uk/whats-on/carols-from-the-cornish-diaspora