The award-winning William Mason High School Marching Band is the largest student organization on campus with over 300 students involved. Musicians and Color Guard in 9th, 10th, 11th, and 12th grades make up one of the best bands in the nation. All students in Marching Band, with the exception of Color Guard members, must be enrolled in one of six school concert bands. For information regarding the Mason Color Guard, go to their web site at http://www.masoncolorguards.com.
As an extracurricular activity, students in Marching Band receive 0.5 credits for participation, which meets entirely outside of the school day. Students also earn PE credit for their participation. The Marching Band season begins with a mini-camp in June, which includes incoming 9th grade students. Band Camp begins in July with daily sessions. After school starts in August, the Marching Band rehearses three times each week and performs at all home football games and some away games. All participants are required to attend all rehearsals and home football game performances.
The Marching Band performs in several competitions on fall Saturdays on the Mid-States Band Association and Bands of America circuits. The Mason Marching Band has performed in Indianapolis, St. Louis, Atlanta, and Pontiac, MI., as well as multiple local and regional venues. At the 2014 BOA Grand National Championships, Mason was invited to perform in the 2016 Tournament of Roses Parade in Pasadena, CA.
Since 2007, the Marching Band has captured the MSBA Open Class Champion trophy 6 times. Mason has consistently been a finalist in Bands of America competitions and has been named BOA Regional Champion three times. At the Bands of America Grand National Championships, the Marching Band has been a semifinalist 10 times; in 2002, 2003, and each year since 2007. The Marching Band has reached the Grand National Finals in each of the last 4 years, finishing in 10th place in 2011, 8th place in 2012, 6th place in 2013, and 5th place in 2014.