(Photograph) - All that jazz: the Isca Linea Caravan ensemble, from Newport, Gwent, victors of the National Festival of Music for Youth prepare for their appearance, along with 3,000 performers, at the 30th annual Music for Youth School Prom at the Royal Albert Hall, London. The octet aged between 18 and 20, will perform their improvised, gypsy-style music next Tuesday, the second of the three-night event. Photograph by ROB STRATTON