Three recordings from percussionist Hans Lingens in his 2nd solo album on Umlaut, working at the intersection between improvised and composed forms of experimental music: "Nacht", a montage of prerecorded layers of mostly rolls and brush sounds; and two recordings in one take using close miking as he performs on a single cymbal with mallets ("Hund") and a bass bow ("Manatee").

Four compositions for strings from German composer Hannes Lingens, including the three-part "Triptych" work performed by the Ensemble CoÔ, a septet directed by bassist Félicie Bazelair that emphasizes bowed strings; and two solo works performed by Bazelair: "Methods and Materials" & "Solo for String Instruments" employing advanced approaches to the double bass.

Compositions for percussion from Berlin drummer and accordionist Hannes Lingens (Musaeum Clausum, Antoine Beuger, Lucio Capece, &c), composed over six years, each using a restricted set of materials, instrument or instrument type, Lingens performing solo, and as a duo and quartet using overdubs, employing microphone techniques for detail and ambiance.