Even for those who have never set foot in an opera house, Verdi's 'Anvil Chorus' is likely to be a familiar tune. Its rousing tune and rhythmic percussion - including, frequently, anvils played on stage on and off the beat - makes it something of an archetype for a bold, cheery Italian chorus. Find out more at www.roh.org.uk/news/watch-verdi-anvil-chorus-il-trovatore