Generally speaking, the rhythm song played before a meeting in a country is: Welcome March.

This is orchestral music

This piece of music is a brass ensemble composed by Wei Qun and the China People's Liberation Army Military Orchestra.

It is a warm and solemn welcome etiquette music, which is often played when welcoming guests in China. ?

Extended data:

The instruments used are:

Flute, clarinet, saxophone, trumpet, French horn, alto, alto, tuba, trombone, tambourine, army drum and cymbal.

The welcome March is an orchestra.

References:

Baidu encyclopedia-welcome March