Heinrich visited us at the age of 26 and stayed in Nigeria for 4 months. He was an inestimable help in our work. Not only was he engaged in masonry jobs, but he also got to know and esteem the Mumuye people and their culture. No wonder he changed his mind and decided to write his PhD on Nigerian law.

He was especially fascinated by the big variety of indigenous music instruments. They have influenced his own music which he is writing and playing in his free time. In 2004 he travelled to Nashville Tennessee in order to record his first music CD with the title Footsteps. Meanwhile a second CD is on the market. In addition he is involved in live performances more and more. Recently a Heiri Muller fan club has been started.