Chamber group, maybe

Usage examples of septet.

Has he become the leader of this Elite Septet of Unseelie, in the same fashion as his brother leads the Royal Attriod, the Chosen Heptad of mighty mortals?

And you should count yourself blessed that after being raised on the infinite wisdom of Guru Vashishta, one of the oldest and most venerated of the Seven Seers, you are now being tutored by yet another of the same septet, the youngest and most powerful seer in this age, Vishwamitra himself.

It was when the septet became an octet that the group finally matured, and the new, fuller sound was due to Hank Crawford switching from baritone to alto and the presence of the remarkable Leroy Cooper on baritone.

Brother Watts and his string septet have to find out how they got in and mend the fence.

Sometimes they were arrayed as two sextets, sometimes as four trios, or three quartets, or a septet and quintet, or six pairs.