The term 'Quartet Count' refers to a group of four musicians who perform together. This type of ensemble is often used in classical music, jazz, and other genres. The term 'Quartet Count' is derived from the fact that there are four musicians in the group. The members of the quartet typically play string instruments such as violins, violas, cellos, and basses. The quartet can also include other instruments such as flutes, clarinets, and horns. The quartet is usually led by a conductor who directs the ensemble and ensures that all the musicians are playing in harmony.