Sealth Ensembles

Concert and Marching Band

The Chief Sealth H.S. Band is without a doubt the most active student group at Chief Sealth High School performing in upwards of 30 appearances each school year. The band is a triple threat, serving as the school’s concert band, marching band, and athletic pep band. Their upbeat and diverse musical selections and energetic dance choreography has been featured in numerous parades throughout the Pacific Northwest including the Victoria Day Parade, the Issaquah Salmon Days Parade, the Downtown Seattle Macy’s Holiday Parade, the Daffodil Grand Floral Festival Parades in Puyallup, Tacoma, Sumner and Orting, and the Syttende Mai Parade in Ballard. As a concert band, the group performs annually in two school concerts and multiple regional festivals including the Elliot Bay Music Educator’s Association Concert Band Festival.  Participants are eligible to receive their choice of fine arts or occupational ed credit through their participation in this class, and students will also have the opportunity to earn a varsity letter if they meet certain extra credit requirements.

Jazz Band

Jazz Band is offered daily before school, largely because so many of our students are also involved in sports and other after-school activities. The jazz band participates in numerous jazz festivals around the Northwest and can also be found performing at local jazz clubs such as Tula’s and the Royal Room. Jazz band is open to students who play saxophone, trumpet, trombone, piano, guitar, bass or drum set. Class credit is given for participation in this ensemble.

Jazz Combo

After-school club open to students interested in playing jazz in a small-group setting. Focus on improvisation.


We are proud to be one of only a handful of schools in Washington State to offer Mariachi.  This class is offered for credit as an elective during the school day. While it is a celebration of Mexican culture, students from all backgrounds who play violin, trumpet, or guitar are welcome!

The program encourages cross-cultural understanding through music, discourages students from dropping out of school, celebrates the culture and heritage of many of our Latino students, and provides a way for parents to actively participate in their children’s education. While the Denny/Sealth Mariachi Program is open to all students, some of the most significant impact occurs with our Latino students.


Orchestra students develop a solid foundation in the fundamentals of string technique while having the opportunity to learn new music and gain familiarity with music theory and history. The students perform in school concerts, regional music festivals, and occasionally travels out of state.

Piano Lab

Students learn to read, write, and perform piano music. Activities include in-class discussions and assignments, individual practice time, private piano lessons with the instructor, and class recitals. Beginning, intermediate, and advanced levels of instruction are offered and students may enroll in this class for multiple semesters and earn additional course credits.