INSTRUCTIONAL STAFF

Cameron Yassaman received his B.A. in Instrumental Music Education from California State University, Fresno, where he studied percussion under David Gabrielson and Dr. Matthew Darling, and conducting under Dr. Gary P. Gilroy. During his time at Fresno State, Cameron performed with the Wind Ensemble, Percussion Ensemble, Orchestra, Jazz Ensemble, and Marching Band. He later earned his teaching credential and a Master’s degree in Multicultural Education from National University.

Cameron joined Cleveland High School in 2015 after the campus had gone several years without a music teacher or formal music program. At the time, the only ensemble was a student-led marching band with 8–15 members. Under his leadership, the program quickly grew in both size and scope. In 2018, the marching band earned its first-ever invitation to the SCSBOA Championships, followed by a Gold medal the next year. Since 2019, Cleveland High School’s Marching Band has medaled every year, earning a total of four Gold medals, one Silver, and one Bronze. Concert ensembles have consistently received Superior ratings throughout Cameron’s tenure, and the jazz program has expanded to two ensembles, with the top group regularly competing in the Heavy division.

In 2025, Cameron was named “Outstanding High School Educator” by the Southern California School Band & Orchestra Association. That same year, he also received the “Outstanding Educator” award from the Los Angeles Secondary Music Teachers Association and was named a quarterfinalist for the national Grammy Music Educator Award.

Erwin Daniel Merida holds a B.A in Music Education and B.M in Music Performance from the University of California, Los Angeles. While at UCLA, he studied Euphonium with Aubrey Foard, principal Tuba of the Baltimore Symphony Orchestra. Erwin also holds an A.A degree in Music and Applied Arts from Riverside City College (RCC), where he studied Euphonium and Trombone under Steve Suminski, and Euphonium with Dr. Lori Stuntz. 

Erwin is an avid performer and has most recently won second prize in the 2021 Mt. San Antonio College Wind Ensemble Solo Competition. He has performed in many music ensembles such as the Riverside City College (RCC) Wind Ensemble, RCC Marching Tigers, RCC Tuba/Euphonium ensemble, UCLA Solid Gold Sound Marching Band, and UCLA Wind Ensemble.

Prior to arriving at Grover Cleveland Charter High School in 2023, Erwin was a visual/music instructor for the Ramona High School Dynasty Marching Band and Color Guard, a student teacher working with the bands and Mariachi at Hamilton High School and taught private piano lessons at the Boys and Girls Club of Hollywood. 

Daniel De Luna has been the Color Guard Caption Head at Grover Cleveland Charter High School since the 2017 Field Season. Under his leadership, the guard program has firmly established itself as one of the strongest guard programs in the region.  

Danny is a highly sought after choreographer, clinician, instructor and designer.  His choreography can be found on fields and floors across dozens of Southern California groups. Danny is also a member of the instructional staff for Icon Color Guard, a World Class Independent WGI group. 

In addition to his work at Grover Cleveland Charter High School, Danny also works with students at El Camino Real Charter High School in Woodland Hills.

Julio C. Diaz III is the Percussion Director/Arranger/Designer for Grover Cleveland Charter High School.  Julio is a D’Addario Artist who proudly uses Evans, ProMark, Planet Waves, D’Addario strings, and pure sound snares.