Composer Andre O. Moller's work for solo double bass, performed by Hans Eberhard Maldfeld, was inspired by Moller's fascination in just tuning & rational frequency relations and an admiration for the work of Hans Eberhard Maldfeld, presented compositionally as a group of 7 pieces for 5-stringed double bass and pre-produced playback, creating a virtual double bass choir.

Christoph Nicolaus began working with the stone harp around 2007, a block of granite with a slanted top that is deeply notched to create fins that resemble a loaf of bread, played by "bowing" the sides with wet hands causing each to vibrate in unique and beautiful tones; this album collects 13 compositions & improvisations performed between 2008 and 2018, in rich and uniquely evocative sound.

Two works from German composer Andre O. Moller: 9 Dances for Natalie Bohrer, a visual artist and painter, in a work deriving pitches and durations from a transformation of numbers, using Christoph Schiller's album "spinet" as sources; and "ungerarde" exploring pitch relations from a recording of radio static with durations in a proportional canon structure.