The composer and sound artist Klaus Feßmann works at the frontiers of music, fine arts and sculpture and the connections of these media. His compositional work is marked by his classical music education, continual experiments in improvisation, and work in the visualization of these musical phenomena. The endeavour to find corresponding visual expressions of the music has led him to extensive graphic work.

After several years, Feßmann added mirrors, foil, wood and stone to the normal paper notation methods and expanded his two dimensional pictures into objects. Gradually stone became the focus of his attentiont and artistic work. He has been working intensely on these phenomena since then.

Klaus Feßmann was born in Nürtingen, Germany in 1951 where he began his instrumental musical education.  Piano was the main instrument while others were added. After high school, he studied music and German with a major in piano. The study of composition under Erhard Karkoschka at the Music University Stuttgart followed. In 1982 he studied musicology under H. Eggebrecht in Freiburg and in 1983 he became an assistant professor in music theory, specialized in training teachers for German high schools. Since 1997 Klaus Feßmann has been instructing at one of the most renown European music universities, the Mozart University Salzburg. During the last 15 years, he has been developing the music of Singing Stones, giving concerts and workshops, and appearing in film and television programs in Germany and abroad. His artistic works include more than 200 national and international exhibitions, concerts and lectures and several orders for compositions, both domestic and foreign (Salzburg, London, Peking, Yokohama, Washington, New Haven and Culoz).