What's on Concerts Pop-up gig: Durham A free public performance by the National Youth Training Choir. The National Youth Training Choir (North) is at Durham University for its Summer residential course, and this is an opportunity to see the group perform ahead of its formal concert the following week in Newcastle. The performance is free and unticketed - just turn up! By kind permission of Durham County Council/Durham Markets. Part of the NYCGB Summerfest 2017.