A collection of six duo recordings from musician, composer, and improviser Peter Soderberg, investigating different tuning systems and the idea of hybrid instruments, recording with Katt Hernandez (violin), Stina Hellberg Agback (harp), Mats Persson (clavichord), Sten Sandell (piano), My Hellgren (cello) and Vilhelm Bromander (contrabass).

A beautiful and contemplative performance of "Raga Marwa", a a hexatonic Indian raga and the eponymous raga of the "Marva thaat", peformed by Dutch-Czech master vocalist Marianne Svašek, and recorded in Stockholm, with Svašek and Swedish bass player Vilhelm Bromander both performing on the tanpura, a long-necked plucked string instrument used to create a sonic canvas behind the raga.

Swedish contrabass clarinetist Christ Bothen in six extended works, the first and third disks a series of solo works using incredible technique and concentration, the 2nd disc a large work in an ensemble with fellow deep reedists Hans Koch & Per Texas Johansson, double bassist Vilhelm Bromander, pianists Kristine Scholz & Tisha Mukarji, and a spectral narrative from Sofia Jernberg.