4
Any quartet has 4 singers by definition.
A Barbershop quartet consists of 4 singers who sing a cappella.
4
A group of four musicians or singers are called a quartet. A group of five musicians or singers are called a quintet.
five people
There are 4 singers in a quartet. A quartet is an organized group of four singers or players. Just like there are 4 quarters in a dollar.
To make a quartet, you have to have four people.
4
Quartet
quartet
mindless behavior which they is a quartet
Four people in a music group is a quartet.