Marc Schonbrun  Marc Edward Schonbrun is an American guitarist based in the San Francisco Bay Area. He has produced notable works based on his skill as a Guitar/synthesizer expert including Books, DVDs, and CDs. After graduating magna cum laude from the Crane School of Music, Schonbrun has performed at various venues including The Tralf Music Hall (Buffalo, New York), and Lincoln Center (New York). Schonbrun is endorsed by D'Addario Strings, Planet Waves Accessories, Godin Guitars, and Flite Sound Speakers. Schonbrun continues to work as a professional speaker for various companies, authoring books and DVDs, teaching guitar, and theory in private lessons. In addition to his work as a musician, Schonbrun is an audio engineer and records classical and small chamber ensemble music.