The Sihl and the Limmat are two rivers in Z�rich, Switzerland, that run parallel to each other for a stretch before inevitably converging. Jason Kahn, electro-acoustic and lowercase composer, had a studio near the two river's alignment when he began working on the pieces that comprise this release. Crossing a bridge over the Sihl each day, Kahn was struck by the differences between the two rivers: the Limmat a deep, clear and rapidly moving river, while the Sihl is shallow and moves slowly, with many rocks and whirlpools interrupting the flow of the muddy water. His affinity for the Sihl and it's evolving condition became an influence on the development of the compositions he created during that time, and therefore the title of the album encompassing these twelve short tracks.

The sense of the Sihl couldn't translate more appropriately in the murky and slowly moving compositions of this release. Kahn is credited with percussion and analogue synthesizer, and his playing is subtle and staid. Each piece is played and processed in real time, using room reverberation from various miking techniques to affect cymbals and a floor tom, while investigating the sonic properties of the synth interacting with those sounds. The pieces develop without hurry, tonal works of resonant synthetics, high pitched whines, quietly howling electronic currents with slow counterpoint from deceptive percussive sounds. Each track is an opaque tonal world, connected in color to the other compositions, uniquely transporting the listener into a submerged and flowing world that ends shortly after it begins, drifting the listener to the next eddy or pool.