The King's Singers are considered masters of harmony. They've developed their own techniques and hold workshops educating other a cappella groups. The double Grammy-winning King's Singers in in New Zealand in March and one of them is a New Zealander - baritone Chris Bruerton has been with the group since 2012. He and long-time singer Jonathan Howard talk to Wallace. And The King's Singers perform in Christchurch on 8 March, Wellington on 10 March with the Voices New Zealand Chamber choir as part of the New Zealand Festival and in Auckland as part of the Auckland Arts Festival on 11 March.