Constanza Chorus is a City of London based choral society which was started in 2010. The choir is large – around 130 members – and is a very friendly and sociable group. The choir is led by charismatic conductor Joanna Tomlinson. Constanza Chorus performs three concerts a year in London churches or concert halls such as Cadogan Hall. In addition, the choir takes part in projects such as recording, workshops and tours.