Alex Lopez is a composer and marching arts instructor based in Orange County, CA. His teaching experience includes serving on the Santa Clara Vanguard Brass Staff (2025 and 2026) and working with the programs of Arcadia HS, John F. Kennedy HS, Aliso Niguel HS, California HS, Katella HS, and Laguna Hills HS. In addition to teaching, he writes and arranges for competitive marching ensembles throughout Southern California.

Alex marched Vanguard Cadets in 2018 and 2019, where he served as Trumpet Section Leader, and was a member of the Santa Clara Vanguard from 2020 to 2024, aging out as Horn Sergeant. He is excited to join the Vanguard Cadets instructional staff as Assistant Brass Caption Head.