March 4th Marching Music Day
Technically speaking, I suppose if you move around when you play music you are celebrate marching music day. However, if you literally march then you need to make sure there is a beat to march to or the players get very confused. Marching music started out as military bands led troops through towns on parade to reassure both the citizens, and the soldiers themselves. It eventually became a competition and began to specialize in the performance. Drum and Bugle Corps leading the way. The Drum Corps International, who founded today officially organized back in 1971.
How to celebrate – Go to a parade and watch the marching bands. Go to a football game for halftime. Watch the military marching bands perform at special ceremonies.