Geoffrey Radant

Director of Bands

Geoffrey Radant has been teaching at San Marcos High School since 2006. His responsibilities include directing the Knight Regiment Marching Band, Wind Symphony, Wind Ensemble, Concert Band 1, Concert Band 2, Jazz B, Jazz combos, Wind Chamber Ensembles, and the Axiom Performance Ensemble. Additionally, Mr. Radant serves as the visual designer and drill writer for San Marcos High School and has worked independently as a consultant, composer, arranger, and designer for marching band, winter guard, and indoor percussion. Bands under Mr. Radant have performed in prestigious events all over the world including China, Italy, Austria, Germany, and the Czech Republic and have acquired a reputation for musical excellence.  Ensembles under his direction have also performed at the Music for All National Festival in Indianapolis and he has presented at the Arts Empower Mega Conference.

Geoffrey Radant is a native of San Diego, California. He received his Bachelor’s Degree in Music from the University of California, San Diego and holds a Master’s Degree in Education.  His professional affiliations include the National Association for Music Education, Jazz Education Network, Western Band Association, California Band Directors Association, and the Southern California School Band and Orchestra Association.

Matthew Armstrong

Matthew Armstrong

Music Director
SMUSD Visual and Performing Arts Coordinator

Matthew Armstrong began teaching at San Marcos High School in 2004 and in 2015 accepted the position of Visual and Performing Arts Coordinator for the San Marcos Unified School District. In 2017, Mr. Armstrong returned to SMHS as a Music Director while maintaining his District role. At SMHS, his responsibilities include directing the Marching Band, percussion ensembles, Jazz A, the Axiom Performance Ensemble, co-directs Concert Band 2, and runs the digital music program. Additionally, Mr. Armstrong serves as the music composer and arranger for the Knight Regiment Marching Band and Axiom.

Named San Marcos High School Teacher of the Year and San Marcos Unified Teacher of the year in 2013, and Music Educator of the Year for the California Music Educators Association in 2015, he is a highly sought after performer, clinician, arranger and arts advocate.  As a performer, he freelances throughout San Diego and regularly performs in San Diego Symphony chamber ensembles, has held the position of principal percussionist with the California Chamber Orchestra, and works throughout San Diego in jazz and Dixie ensembles. Mr. Armstrong has taken groups to prestigious events all over the world including Japan, England, France, Switzerland, Italy, Austria, Germany, Australia, China and special performances at the Hawaii International Jazz Festival, concerts for U. S. Presidents, the Bands of America National Concert Band Festival and 5 appearances at the National Percussion Ensemble Festival. Mr. Armstrong is a member of Percussive Arts Society, and the Southern California Band and Orchestra Association, California Music Educators Association and the National Association for Music Education.  Mr. Armstrong teaches and performs as an Innovative Percussion Artist.


Alina Steele

Flute Coach

Alina Freiman Steele(M.M.) has been teaching flute since 2001. A member of the MTAC Music Teachers’ Association of California, Mrs. Steele or ‘Ms. Alina’ as most students call her,  is also on the Board of Directors for the San Diego Flute Guild. Very fortunate to have studied with some of the most highly regarded flutists of our time,  her principal flute teachers have included Linda Chesis, Mary Stolper, and Robert Dick. Ms. Alina continues to be an active performer in chamber and orchestral settings and is a member of the National Flute Association.

Alina Steele is also a sought-after sound engineer. She specializes in post production audio for video and her work has been heard on Showtime, HBO, CBS, CBS Sports Network, and ESPN. In addition to sound design, mixing, and original music composition, she has recorded audio for many celebrities for radio and television.

Brittany Sepulvado

Clarinet Coach

Brittany Sepulvado has performed extensively with diverse ensembles including the San Diego Winds, City Ballet of San Diego, Centre City Chorale, and Left Coast Quintet. She studied with Jerry Kirkbride at the University of Arizona and Sheryl Renk at San Diego State University with the support of audition-based scholarships at both institutions. She holds a Bachelor of Arts in Music.

As an educator, Brittany has worked in public and alternative schools with students aged 4 to 26. Brittany has coached music classes at various schools where she has lead groups of up to 30 students through lessons in pedagogy, repertoire, and musicianship. Her private students have gone on to participate in honor bands and win music scholarships at prestigious music schools nationwide.

Her love of music and teaching have driven her to focus on increasing the impact of the arts for San Diego’s underserved youth.

Ashley Lindsey

Music Assistant / Visual Caption Head (Knight Regiment Marching Band) / Artistic Director (Axiom) / Saxophone Coach

Ashley Lindsey has ben teaching at San Marcos High School since 2009. Her responsibilities include Music Assistant for the entire music program, Visual Caption Head for the Knight Regiment, Artistic Director for the Axiom Performance Ensemble, and saxophone coach.

Ms. Lindsey has been heavily involved with music from an early age, first studying piano and then saxophone. She has been a saxophone player for 19 years and while a student at Vista High School, she was involved with the marching band, jazz band, and the wind ensemble where she was principal chair for 4 years. During this time, Ms. Lindsey performed at the Music for All National Festival and has also performed internationally.

During the summers of 2003-2005, Ms. Lindsey marched with the Esperanza Drum and Bugle Corps on mellophone, winning the Division 2 World Championships in 2003. Continuing her musical education after graduating, Ms. Lindsey studied saxophone under Geoffrey Radant while earning a B.A. Degree in Communications with an emphasis in Entertainment from CSU Fullerton. Ms. Lindsey also spent 7 years training in jazz dance to improve her understanding of movement and repertoire as a visual designer.

Ms. Lindsey has been teaching since 2004 and has worked as a visual technician, movement technician, choreographer, drill writer, visual caption head, and music coach for both marching bands and indoor drumlines. She also continues to play saxophone and works independently as a private lesson teacher. She has worked with many award winning programs in Southern California including Cerritos HS, Westview HS, Mission Hills HS, SDSU, and San Marcos HS and is regularly sought out as a visual consultant for marching band. Intrigued by the visual and artistic aspect of the marching arts, Ms. Lindsey has spent years training and studying to develop a unique teaching method that highly integrates dance technique and choreography with marching, and has helped build the innovative programs and design seen with the Knight Regiment Marching Band and the Axiom Performance Ensemble at San Marcos High School.

Jacqueline Goldberg

Guard Caption Head

Jacqueline is a graduate of Rancho Buena Vista where she spent all four years involved with marching band, color guard, and dance. After graduating, she performed with several groups including Lealta and Vox Artium in the winter and the Esperanza Drum and Bugle Corps and Santa Clara Vanguard Drum and Bugle Corps in the summer. Her love of dance and color guard gave her the passion for focusing her education on dance and movement and in 2011 she graduated from Cal State San Marcos with a bachelor in kinesiology.

As a teacher, Jacqueline has taught at many local high schools, independent groups, and a middle school as an instructor and clinician. She has been teaching at San Marcos School since 2007 and has been the Guard Caption Head since 2011.

Juan Jasso

Woodwind Caption Head
Drum Major Instructor

Juan Jasso is the current Woodwind Caption Head and Drum Major Instructor for the San Marcos Knight Regiment. His past experience in conducting and woodwind pedagogy influenced him to pursue a degree towards Music Education at California State University Fullerton. An aspiring musician he performs different styles of music in multiple settings all over Southern California.

Juan is currently a Saxophone Major in which he is a part of the Symphonic Winds at CSUF as well as a part of multiple jazz combos, saxophone quartets, and small ensembles. Additionally, he is a local music instructor to individuals and groups, including the San Elijo Middle School House Jazz.

Michael Walsh

Visual Technician

Michael is a North County native and graduate from Vista High School, where he first began to love the marching activity.  Upon graduation in 2006, he began a brief career as an orchestral trumpeter in the San Diego area, as well as an educator working with all ages.

He holds a Bachelors degree in Economics from California State University, San Marcos, and now works as a Business Process Analyst at ViaSat in Carlsbad.  Michael enjoys traveling, great food, and the outdoors.

He feels privileged to be working at San Marcos High School because he believes it is a very special program which is providing its students with a unique, high quality experience, an exceptionally rare opportunity in the age of school budget cuts.

Scott Sutherland

Artist Teacher of Tuba and Euphonium
University of Redlands
Yamaha Performing Artist

A life-long resident of Southern California, Scott Sutherland has been hailed as “the second craziest tuba player I know” by famed American composer, Joan Tower. He is a member of the Redlands Symphony, Riverside Philharmonic and has been spotted in the back row of ensembles such as the Los Angeles and Colorado Springs Philharmonics, as well as the symphony orchestras of San Diego, Long Beach, and Santa Barbara. Likely due to clerical errors, Scott has performed at the front of the stage as a soloist with the San Diego and Idyllwild Arts Symphony Orchestras, as well as the Riverside and Burbank Philharmonics. He has also recorded for film, television and video game soundtracks, including the major motion pictures Pearl Harbor and Batman vs. Superman (which is the only accomplishment notable to his younger private students).

Scott is perhaps best known as the tubist and pianist of the international touring ensemble, Presidio Brass, for which he is the primary arranger. With the Quintet, he has performed in over 40 states, Canada and China.

In addition to arranging for Presidio Brass, Scott can often be found behind his MacBook Pro, slaving away for hours on end adapting music. His arrangements have been performed by ensembles throughout the world, including the Principal Brass of the New York Philharmonic, famed tubist and conductor Roger Bobo, as well as chamber groups from the West Point Band and the “President’s Own” Marine Band. Scott’s “Fantasy on Porgy and Bess” for trumpet and orchestra was commissioned by soloist Barry Perkins and has been performed with the Pacific Symphony (California) and the Aguascalientes Symphony (Mexico).

He is on the faculty of the University of Redlands, Idyllwild Arts Summer Program and Pokorny Low Brass Seminar, each of which keeps him out of trouble when not on the road.

Despite all of this, Scott’s foremost identity comes as a husband and father to his beautiful family and he is grateful to come home to Carlsbad, CA where they continue to recognize him after each trip out-of-town.

Scott Sutherland is proud to be a Yamaha Performing Artist.

Terence Cooper

Terence S. Cooper

Jazz C Director
High Brass Instructor

Terence has been a local Horn player/ Singer/Composer/Arranger/Teacher/Coach in the San Diego area for the last 27 years.

He is a former principle horn in the La Jolla Symphony, has performed and written for performing groups at Sea World, Lego Land and most recently, The San Diego Zoo.

He has been also a music minister at North Coast Church in Vista for the last 13 years,
where he plays piano and sings each weekend in the “Soul Gospel” venue.

Zach Elliot

Zachary Elliott

Percussion Instructor

Zachary Elliott is a highly experienced percussionist and currently performs with and teaches a variety of ensembles all over San Diego County.

He took part in the Music for All National Percussion Festival in Indianapolis in 2012 and 2014, performed as principal percussionist for the Palomar Symphony Orchestra, and now is an active pit orchestra musician and performs frequently with an array of small ensembles.

He teaches percussion privately, and coaches percussion across the San Marcos Unified School District. For the past two years, he has taken groups to represent San Elijo Middle School at the San Diego Percussion Festival.

Latest News

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