The YouTube Symphony Orchestra 2011 performs Roman Carnival Overture, Op.9 by Hector Berlioz at the Grand Finale concert.
The French composer Hector Berlioz wrote a number of overtures, many of which have become popular concert items. They include overtures intended to introduce operas as well as independent concert overtures.
Le carnaval romain, ouverture pour orchestre (English: Roman Carnival Overture) Opus 9. Composed in 1843 and first performed at the Salle Herz, Paris on 3 February 1844. A stand-alone overture intended for concert performance, made up of material and themes from Berlioz's opera Benvenuto Cellini, including some music from the opera's carnival scene - hence the overture's title. It is scored for large orchestra, is in the key of A major, and features a prominent and famous solo for the cor anglais.