John O’Gallagher is a professional saxophonist, educator, and researcher from Brooklyn, New York. During his performing career he has appeared at numerous international jazz venues and festivals, and additionally on radio programs broadcast by BBC-3, RSI-Switzerland, and Radio France. The New York Times has described him as “an alto saxophonist of dry tone and daring temperament”. He has been featured with the Joe Henderson Big Band, Maria Schneider Orchestra, Kenny Wheeler Large Ensemble, and in numerous groups with artists such as Ben Monder, Tyshawn Sorey, Billy Hart, Ralph Alessi, Mike Gibbs, Bill Stewart, Donny McCaslin, Jeff Williams, Tony Malaby, Johannes Weidenmueller, Chris Cheek, Tim Hagans, Drew Gress, Mark Guiliana, Paul Dunmall, and Tom Rainey. His discography is comprised of more than 60 CDs. Recordings on which he has appeared have received one GRAMMY award, two GRAMMY nominations, and three JUNO award nominations. As an educator and clinician, he has mentored students at international conservatories and universities such as The New England Conservatory, The New School, Hochschule Musik und Theater (Zurich, Switzerland), Conservatoire De Paris (France), and the Royal Birmingham Conservatoire (UK). He is the author of the book Twelve-Tone Improvisation published by Advance Music.