I am currently in a marching band as a hobby.
I used to perform in marching band competitions.
Oh really? What instrument did you play?
I played brass instruments, but mainly the trumpet.
I play the flute.
That's awesome!  Wind instruments have been used on the battlefield since ancient times.
Oh really? I didn't know that.
So, have you performed at any parades, or sporting events?
Yes, I live around the New Orleans area so I have marched in quite a few Mardi Gras parades.
Me too, we were accompanied by a color guard in one of the parades. They use props to add visual interpretation to the music.
Marching band