The GUITARSAGOGO GAS SOCIETY is a loose-knit group of musicians, collectors and enthusiasts of vintage and modern instruments. There is no formal structure and no commercial intent. It is neither an association nor a cult. Founder is Ralph Barenthien, a former brand strategist with decades of experience in the music and guitar industry; today, he shares his knowledge and insights on a purely voluntary and unpaid basis. Areas of past professional activity: Brand strategy – Product design – Pr