More than 12,000 musicians meet in Caracas, Venezuela. They get together for one reason. They want to make a new world record for the biggest orchestra (管弦乐队).
All the musicians are in Venezuela's national orchestras. They are at different ages. They are between 12 and 77 years old. They are from different countries. Their concert is around one hour long. All the musicians play together for about 10 minutes. They practise playing together for a lot of times.
More than 250 people watch them. These people are from the Guinness World Records. Every person watches a group of musicians. They see if all the musicians follow the rules. After the musicians' show, the Guinness World Records say the musicians make a new record. They become the world's largest orchestra. One of the musicians says, "I'm very happy to be one of the members of this new world record. I'm so excited about it!"
The musicians play "Slavonic March". It is a piece of music by the Russian musician, Pyotr Tchaikovsky. He wrote it in 1876. He wrote it for some people. These people died in the war between Serbia and Turkey.
