Move over 'Pitch Perfect', local a cappella has hit SA screens

'The Sing-Off SA' gives local groups a chance to get in on the a cappella action, writes Rebecca Davis Dearly beloved, we are living in an a cappella moment. Don't look at me - I have no idea how it happened either. We spend centuries developing instruments and music production techniques to make us sound less like we're sitting around crooning by the fire in a cave, and then we go and throw it all away.