Chris O’Brien is a dynamic trumpet artist, in-demand brass arranger, and dedicated educator. Currently based in O’ahu, Hawai’i, he serves as a trumpet instrumentalist for the U.S. Pacific Fleet Band. Whether performing for international dignitaries, crafting custom musical arrangements, or coaching the next generation of brass players, Chris brings a standard of excellence forged in the highest levels of military musicianship.

The Arranger | As a composer and arranger, Chris specializes in creating impactful, idiomatic literature for brass ensembles. He understands that music designed for significant occasions needs to resonate deeply with both the performers and the audience. His catalog includes custom work designed for high-profile events—such as re-imagined patriotic favorites for military ceremonies—ensuring every chart is musically satisfying and practically accessible for working professionals.

The Educator | Drawing on his extensive performance background, Chris translates the rigorous demands of professional playing into an accessible, results-driven teaching philosophy. Through his online trumpet studio, he works with dedicated players of all levels to strip away technical issues and build efficient, reliable fundamentals.When he is not performing, arranging, or teaching, Chris enjoys running and hiking to explore the vibrant culture and history of his Hawaiian islands