Solo bass improvisations from Charleston improviser Branden Abushanab, 5 tracks using the strings, case, bridge and bow of the instrument for tempestuous and technical excursions.

AMM percussionist Eddie Prevost playing all bowed sources in a subtle and ringing duet of bowing approaches with violinist Jennifer Allum of the London Post Quartet.

Members of Eddie Prevost's weekly improvisation workshops, violinist Jennifer Allum and cellist Ute Kanngiesser, recorded these 3 improvisations, running the gamut from spacious harmonics to vigorously weaving dialog, in 3 rooms of St Augustine's Bell Tower in London.

This duet between cellist Altenburger and guitarist Russell was recorded at the Musique en Mouvement Festival Theatre du Jarnisy in 2008, an intense and intricate dialog of great dynamics.

Paolo Angeli presents an experimental album that explores the entire range of his modified, extended, and prepared Sardinian guitar with beautiful compositions that defy categorization.

Sardinian guitarist Paolo Angeli teams up with After Dinner/Volapuk violinist and singer Takumi Fukushima for a complex, unusual, and wonderfully embraceable work recorded live in Bologna.

ap'strophe began working together in 2006 in search of a common sonoric space, which they found in the investigation of distinctive timbres between acoustic guitar and zither.

Four performances of Iancu Dumitrescu & Ana-Maria Avram's iO String Quartet playing their compositions for string quartet & tape live in London, Brussels and Paris.

Electro-acoustic composers Ana-Maria Avram and Iancu Dumitrescu with large groups including the Hyperion Ensemble, plus Tim Hodginkson on clarinet, performing in Conway Hall, London in 2008.

The full performance of legendary improvising guitarist Derek Bailey's 2001 exhilarating duo with bassist Simon H. Fell at Sound 323, originally released as a mini-CD and voted record of the year in 2002 by The Wire.

The debut album from the NY based Baloni trio, blending chamber techniques with a unique approach to improvisation, as performed by bassist Pascal Niggenkemper, violist Frantz Loriot, and multi-reedist Joachim Badenhorst.

In the second volume of their collaboration, Banabila and Van Geel explore further into their neo-classical mix of viola improvisations, ambient textures, minimal compositions, and modular experiments.

The London based improvising string trio Barrel of Alison Blunt on violin, Ivor Kallin on violin & viola, and Hannah Marshall on cello, all members of London Improvisers Orchestra and performers at the 2007 Freedom of the City.

Two instruments - Bertoncini on violin; Lehn on analogue synth - with totally different histories come together and look for a connection across two great sets from 2006 & 2010.

Three free improvisations for voice & double bass + improvisations on Hugo Ball's Six Sound Poems from the duo of free improvising vocalist Jaap Blonk and double bassist Damon Smith.

FIMAV performer and For4Ears artist Helene Breschand in a mysterious album of improvisational solo electric & acoustic harp and voice compositions.

Berlin double bassist Nadav Masel and Israeli guitarist Ido Bukelman performing on banjo, acoustic guitar & bells, in live recordings at Barbur gallery in Jerusalem, Israel in 2013 for 5 free works of flight, which they describe as "Improvisational Pieces for Meditations".

This duo arose from the meeting between two violists avid to confront with their instrumental double to create a common sound universe from the same instrument played by two different personalities.

Dark and beautiful improvisation from saxophonist and electronics artist John Butcher and harpist Rhodri Davies, an incredible display of timbre, technique, and pacing.

Theo Ceccarelli expands his string trio from their Ayler debut album, "Carrousel", adding bassist and free vocalist Joelle Leandre to the group, yielding a new dimension to their rapidly expanding repertoire of rich, interactive improvisation.

A set of playful, upbeat duos from West Coast-born bassist Greg Cohen and NY guitarist Bill Frisell, celebrating Cohen's home state of California in 6 originals and 3 California covers.

Six unorthodox sketches for acoustic violin, focusing on advanced techniques and preparations including a plastic peg, a spring, and a nail file, from London based Angharad Davies, recording live improvisations at Goldsmiths University.

Improvising harpist Rhodri Davies in a solo career retrospective box set with 4 LPs (+ download codes) in screenprinted heavy card sleeves with artwork by Jean Luc Guionnet, plus curated flyers, posters, a booklet written by Rhodri Davies, an essay by David Toop, &c. &c.

French free improvisers Benjamin Duboc (double bass) and Jean-Luc Petit (contrabass & clarinet) in a moody album of bass tones, deep harmonics and rich timbral interaction with beautiful pacing that rises in confrontation and then descends back to artful darkness.

French bassist Benjamin Duboc, part of The Turbine!, Nuts, and a member of the Dark Tree roster, in a solo album of two extended improvisations: the traditional folk song "St. James Infirmary Blues"; and a free improvisation named for the church in which the album was recorded.

Composer Jason Eckardt presents "Subject", a work that confronts "enhanced interrogation" techniques using sound and light, plus other works including a 6 part piece about glossolalia ("Tongues"), performed by JACK, ICE, and the Oberlin Contemporary Music Ensemble.

Virtuoso double bassist John Eckhardt in eight performances of polyphonic and other-worldly explorations showing the instrument's breadth of sonic potential.

UK European free improv in-demand double bassist John Edwards in what is surprisingly his first solo album, recorded by John Wall at his Utterspalm studio.

Guitarist Sandy Ewen and double bassist Damon Smith recorded these 2 extended improvsations in concert as part a "Desbordamientos" series at Cine Tonala, in Mexico City, pairing live music with screenings of Derek Bailey's 4-part series on improvisation.

The 2nd volume of "Music for Piano and Strings" by Morton Feldman is performed by The Smith Quartet with John Tilbury, presenting "Patterns In a Chromatic Field", and "Piano, violin, Viola, Cello", on DVD audio to allow for the length of these large works.

The Ives Ensemble playing one of Morton Feldman's later and shorter works, the 1979 "String Quartet," in a digital DDD recording from 2005.

Double bassist Alexander Frangenheim, peer to Phil Durrant, Evan Parker, Phil Wachsman, Thomas Lehn, Roger Turner, &c., in a 17 part solo work of gripping and exhilarating playing.

"Zwirn" means "twine" in German, an apt description of the interweaving sound that double bassists Daniel Studer and Peter Frey play together, in 7 freely improvised works of unusual technique and new musical structures.

Cellist Erik Friedlander provides the 8th in this series of interpretations of the Masada songbook, a lovely and technically remarkable set of music.

Deconstructed sounds from Ralf Wehowsky (RLW) on electronics & Johannes Frisch on double bass, citing Ornette Coleman's "Free Jazz" album as an (abstract?) influence, using noise, glitch, acoustics and jump-cut compositional styles that surprise but won't make you want to dance.