Fredrik Carl Størmer (born 12 July 1957) is a jazz drummer and entrepreneur based in Oslo, Norway and is named after his great grandfather the Norwegian mathematician. Based on his music and business experience, he has developed the JazzCode – a term describing the guiding principles used by jazz musicians in particular and professional teams in general to create a successful performance. The JazzCode applies to small teams having to manage complexity and rapid change. It is also relevant to organizations change cultures in order to adapt to rapidly changing contexts. Størmer has also developed a method to improve how small teams manage complex problems in thinking, reading and writing and his class is used by consultants, analysts, project managers and top teams in several Norwegian compa