
What is an orchestra?
An orchestra is a group of musicians. It includes lots of instruments and sometimes up to 100 players.
Instruments in the group or ensemble include:
- Ones that you bow like a violin. This is called the string section.
- Ones that buzz like a trumpet. This is called the brass section.
- Ones that blow like the flute. This is called the woodwind section.
- Ones that you hit like the bass drum. This is called the percussion section.

Watch: Explore the instruments of the orchestra
Watch musicians from the BBC Philharmonic Orchestra play and talk about their different instruments.

Important words
Instrument – An object used to make sounds.
Musical ensemble – A music group that includes many players.
Notes – Each different sound is called a note.
Section – The orchestra has four sections of instruments, called families: string, woodwind, brass and percussion.
Valves – These are like keys on a trumpet, that you press down for different sounds.

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