Now let's talk about instrumental music.

Instrumental music is played by an orchestra, a group of musicians.

The leader, who controls the music is the conductor.

There are three basic types of musical instruments : percussion instruments like drums, cymbals, tambourine and triangle,

wind instruments like the trumpet, flute, clarinet and trombone, and string instruments like the guitar, violin, harp and cello.

Some instruments play the melody, the main sound of the music.

Other instruments play the harmony, the notes that complement the melody.

The percussion instruments keep the beat. That means, the rhythm.

When an orchestra plays music in public, the event is called a concert.