Sydney Chamber Choirâs spirit abounds in hope Weâre sorry, this service is currently unavailable. Please try again later. Dismiss By Peter McCallum Save Normal text size York Theatre, Seymour Centre, January 21 Socially distanced and immaculately balanced, the Sydney Chamber Choir and conductor Sam Allchurch have serendipitously discovered the secret to making the barn-like acoustic of the Seymour Centreâs York Theatre work for classical music. The Sydney Chamber Choir perform Cycles. Credit:Yaya Stempler By separating the singers by 1.5 metres across the whole performance area, the choir created a sound of glowing depth and intricate clarity - neither unduly thin or amorphously fog-like. In