Poul-Gerhard Andersen (1904–1980) was a significant figure in Danish organ building, known for his expertise in organ design and particularly in the architectural aspect of organ facades. Andersen began his career in 1926 at Marcussen & Søn, a prominent Danish organ building company, where he gained extensive experience and honed his skills. In 1963, he ventured into independent organ building, establishing his own company where he continued to develop his craft. Andersen's influence in the field extended beyond practical organ building; he was also an author, and his book *Orgelbogen* (1955) remains one of the most comprehensive texts on organ building in Denmark.

After Andersen's passing in 1980, his legacy continued under the leadership of Paul Hansen, who took over the company. In 1995, the firm merged with P. Bruhn & Søn to form P. G. Andersen & Bruhn, combining the expertise and traditions of both companies. The merged entity continues to operate from two locations in Denmark, with Bjarke Bruhn and Brian Hansen leading the company into the modern era while maintaining the traditional craftsmanship and quality established by Andersen and his predecessors.

https://de.wikipedia.org/wiki/P._G._Andersen_%26_Bruhn