Tibicen

When the Lacedaemonians went to battle a Tibicen played soft and soothing music to temper their courage.

Source: wiktionary

But this man’s words are spirit itself, and burn their niche in Time, to last as long as that will. Take two of them: “Soldiers, forty centuries look down upon you!” and again, “Behold the sun of Austerlitz!” When you speak, speak thus to men; such words are deeds; and come not as from one who beateth the air to the pitchpipe of the tibicen Ciceronical, but as the bullet to its butt; speak swordpoints, that press between the joints and marrow.

Source: wiktionary

We have no archaeological evidence that we can with certainty attribute to original performances of Plautus and Terence. We can, however, learn a great deal by examining Greek and later Roman evidence, including artistic portrayals of singers, tibicines, and theatrical performances, and some surviving tibiae.

Source: wiktionary