The award-winning Walnut High School Instrumental Music Department continues to improve upon its already outstanding reputation as one of the top music programs in Southern California. We offer a comprehensive music program featuring a wide variety of musical ensembles including our Walnut High Symphonic Orchestra, the 210-member Blue Thunder Marching Band and Colorguard, three concert bands, two string orchestras, and two Jazz Big Bands! Our Music Program was one of the first schools in the nation to be awarded the prestigious Grammy Signature School Award by the National Academy of Recording Arts & Sciences. We dedicate this website to our current students and especially to all of those alumni students, family and friends who have worked so hard over the years to help us grow into such an exceptional music program. Thank you and... Welcome!