SoundCrowd will be hitting the stage with three incredible Toronto-based a cappella groups – Cadence (http://www.cadence-unplugged.com/), Countermeasure (https://www.countermeasuremusic.com/) and Retrocity (http://www.retrocity.ca/) – in a celebration of music and singing that will blow the roof off the Jane Mallett Theatre! Presented in association with SING! The Toronto Vocal Arts Festival (http://www.singtoronto.com/)