Intermedial, occasionally multimedia, filmic, (photo-)graphic, electro-acoustic, radiophonic, instrumental, improvisational, notated, installative and often collaborative. This is how Nikolaus Heyduck, born in Kassel in 1957, can be described. He is not just an artist and composer, he is a performing musician, a sound artist, an equally active player in the various aesthetic metiers. The CD Horizons features seven of his works that have been created in recent years as joint projects with artists and composers who are also predominantly polyaesthetically active.