All Together Now: The Great Orchestra Challenge is a four-part series to find the orchestra that best captures the spirit of great British amateur music-making in the UK. Episode 3 sees the orchestras take on another difficult musical form - the concerto, an orchestral piece featuring a virtuoso soloist.A concerto is a daunting project for any orchestra, but this time the soloist will be chosen from the orchestra's own ranks. Can they elevate one of their own and mould them into a virtuoso performer in a few short weeks?It's not just the soloists who will have to up their game. The whole orchestra will have to support and lift them to greater heights. And if that wasn't enough, the orchestras will also showcase their work at a concert that they will plan and produce themselves on their home turf.Each of the three remaining orchestras gets extra tuition and help from the series' judge, renowned conductor Paul Daniel, and the series mentor Chi-chi Nwanoku selects three world-class musicians to give our soloists individual mentoring sessions.We follow the orchestras as they rehearse and plan the concerts, and we follow the soloists as they attempt to grow into the role of virtuoso performers.The show culminates in the performances the orchestras put on themselves, after which one orchestra will be eliminated from the contest by Paul Daniel.Presented by Proms host and last year's Strictly Come Dancing finalist Katie Derham, this series attempts to get under the skin of the real musical and personal challenges that face five amateur orchestras from across the UK as they attempt to truly come together and rise to new musical heights.The five orchestras taking part are North Devon Sinfonia, London Gay Symphony Orchestra, The People's Orchestra from Birmingham, Slaithwaite Philharmonic Orchestra and Stirling Orchestra. Can the players master their sheet music while also getting on with their varied day jobs as farmers, supermarket workers, carers and undertakers? Who will rise to the challenge, and who will find themselves dismissed from the contest?