Katie Derham presents the launch of the world's greatest classical music festival from the Royal Albert Hall. The celebrations open with Tchaikovsky's ravishing Romeo and Juliet overture, the first in a series of musical works during the season marking 400 years since the death of Shakespeare. The 2016 BBC Proms also spotlights the cello, and tonight, the remarkable Argentine cellist Sol Gabetta makes her proms debut in Elgar's haunting Cello Concerto, the first of ten concertos for the instrument to be performed during the festival. Sakari Oramo conducts the BBC Symphony Orchestra.