The Excelsior Brigade Fife and Drum Corps is a group of people who play music together using special instruments called fifes and drums. They wear special outfits that look like the ones soldiers wore a long time ago during the American Civil War.
When they play music, they march in lines and move their feet to the beat of the music. They practice a lot so they can play the music perfectly together and sound really good.
This group likes to remind people about important events in history, like the Civil War, and they often play music from that time period. They also like to perform and entertain people at different events like parades and ceremonies.