Military Music in Antiquity?

[Centurio Nixalsverdrus]

Drums would have been extremely helpful for phalanxes, not for giving order but to keep the pace. Nothing more important for a phalanx than the regular, synchronized pace.

[Subotan]

Didn't the Mongols use drums in order to issue orders to their troops on the battlefield? If so, it would hardly be surprising if other Central Asian nomads used the same technique.