jess baron, founder of guitars and ukes in the classroomJess Baron founder of Guitars in the Classroom, a San Diego-based nonprofit that brings music and music education into schools. (Nelvin C. Cepeda / The San Diego Union-Tribune) Jess Baron founder of Guitars in the Classroom, a San Diego-based nonprofit that brings music and music education into schools. (Nelvin C. Cepeda / The San Diego Union-Tribune)