I’m in a program which is the Air cadets. In air cadets we do a lot of marching and stuff based on the army. There are lots of patterns and timings for the marching and you need to match your footsteps with the timings . In the air cadets there is a club in it that is the marching band. In it I think it combines music,math and timing for the marching. You are basically marching while playing a instrument. In you’re mind you have to know the timings  for the marching and the notes of your instrument There are lots of timings and patterns behind the music. Here is a short video on the marching band for air cadets.