As a trumpet player, Walker has worked with notable artists such as Wayne Newton, Natalie Cole, Ray Charles, The Temptations, The Four Tops, The Supremes, and The Moody Blues. In 2010, he was the featured soloist with the United States Air Force Jazz Commanders. Walker has also played in the pit for two Broadway national tours, "Chicago", "Spamalot", and for the Glenn Beck Red Sweater Christmas tour. His trumpet can be heard on NBC’s coverage of Preakness, Belmont, and the Kentucky Derby.
Rob Walker teach Jazz History at the College of Western Idaho. He is also the Director of Jazz Studies and Applied Trumpet at the College of Idaho and frequently appears as a clinician, jazz festival adjudicator, and jazz educator. He also teaches Jazz History at the College of Southern Idaho.
He studied film scoring at the Berklee College of Music. He received a Berklee Alumni Award in 2009 and recently received the 2012 ASCAP Plus Award for his compositions for concert bands and orchestra. He holds a B.A.from New York University in Film and Music Composition and did additional compositional studies at The Juilliard School. He also studied composition privately with William Russo. Walker is a member of the American Composers Forum, International Trumpet Guild, and ASCAP. His new work entitled "Sounds of Lincoln" will be premiered at the 150th Anniversary of the Gettysburg Address at Wilkes University in PA.
Rob Walker is also a prominent composer with major film, television and performing credits. His film credits include 10 major motion pictures including Perks of Being a Wallflower (2012),Easy A (2010), Tenure (2009), Bandslam (2009), Whip It (2009), College Road Trip (2008), High School Musical III (2009), and Fired Up! (2009). He also has 35 television credits including Friday Night Lights, Chicago Fire, Cold Case, The O.C., Animal Planet, Glory Daze, All My Children, and One Life to Live. His music has been heard internationally in over 35 countries.