Staff Christian Stoll Boss. All-rounder. Luthier, repair service, sales, customer service, customer acquisition, accounting. Bastian Ortner Dipl.-Ing. Information and communication technology. What would the repair shop be without him ... Florian Pertsch Our "youngest" apprentice started his education on 01.3.2016 Doris Breckner Does everything except building guitars. Webdesign, product images, brochures, advertising, exhibition booth design, alaska piks counseling, telephone service.