The documentary "Die Geschichte des Saarlands" by director Tilman Büttner impressively shows under what circumstances the rich coal deposits of the Saarland had been formed from a huge, tropical forest area of the Carbon Age, as presenter Sven Plöger explains among other things.
In the third episode of "Spuren im Stein" the film music moves more on modern terrain and there are few orchestral cues. For example I here are sound collages to images of the Carboniferous forest, mixed with an atmospheric sound design or electronic ambient music in the scenes underground or on the heaps. A heavier gait sets the music when it comes to iron, where harsh beats and distorted sounds underline the raw power of iron processing. But there are also gentle e-guitar sounds to hear, when, for example, we learn about winegrowing in Saarland.
Not only the numerous animations, partly with atmospheric underwater worlds, made a detailed sound design necessary, but also the high speed recordings and many other places in the film.
"Die Geschichte des Saarlands" is the third of a total of 12 episodes from the series "Spuren im Stein".