An eight-member ensemble, also known as an OCTET, is a group of eight musicians or singers who perform together. This type of ensemble is often used in classical music, jazz, and other genres. It is typically composed of two violins, two violas, two cellos, and two basses, although other instruments may be used as well. The OCTET is a versatile ensemble that can create a wide range of sounds and textures, from lush harmonies to intricate counterpoint.