Part of a performance by tenor saxophonist Lorenzo Sanguedolce and bassist Michael Bisio, two extended and adventurous jazz works composed by Sanguedolc.

Tokyo pianist Masahiko Satoh recorded these two extended improvisations with Norwegian drummer Paal Nilssen-Love in concert at Shinjuku Pit Inn, Tokyo in 2013, a remarkable dialog of intense technical power and creative passion.

The coordinates in the title are from Switzerland, the location where Christoph Schiller and Lea Danzeisen recorded this unusual output from a pair of spinnet keyboards, manipulating them in highly unusual ways.

Elisabeth Harnik on piano and Udo Schindler on bass clarinet, contrabass clarinet, soprano saxophone and cornet in a free interchange of subtle nuance and strong dynamics recorded live at SALON fur Klang + Kungst in 2009.

The free improvising duo of pianist Manon-Liu Winter and saxophonist Udo Schindler performing at the SALON fur KLANG + KUNST in Kralling, Munich in 2012, an amazing dialog that balances subtle and explosive playing in inventive ways.

Using extended techniques and a remarkable interactive approach, trombonist Matthias Mueller and soprano saxophonist Frank Paul Schubert surprise in 9 distinctive duo recordings.

Tim Barnes on snare drum and amplification and Mark Wastell on amplified textures, tuned metal, making small, mostly unidentifiable sounds with a Cage-style open flair.

The duo of Bryan Day (Eloine, Shelf Life) and instrument builder Jay Kreimer in what they describe as "confrontational gamelan theatre", a form of amplified metal/object-based improvisation.

The 3rd Clean Feed Guitar Series brings Elliott Sharp and Scott Fields together for a mixture or conventional notation, graphic notation, and structures for improvisation.

Studio improvisations on guitar & viola from NYC, and then live improvisations augmented by electronics in Geneva from two unique and impressive improvisers.

A live concert from soprano saxophonist Airel Shibolet performing with drummer Haggai Fershtman live in Tel Aviv, 2010, part of Kadima's Cy Twombly live performance series.

Free jazz pioneers and electronic improvisers Alan Silva and Burton Greene together playing vintage synthesizers and keyboards, exploring new sounds and pushing boundaries.

Avant jazz trumpeter and flugelhornist Susana Santos Silva and double bassist Torbjorn Zetterberg performing a set of introspective and explorative duos using impressive technique in a creative and riveting dialog.

Originally proposed to ECM in 1979 and rejected, the duo of legendary trumpeter Smith and drummer DeJohnette pushes each other into remarkable and telepathic interplay.

Roger Smith plays extended acoustic guitar improvisations that were recorded between 1993 and 1997; with a duet with Neil Metcalfe on the flute.

1972-73 previously unreleased SME duo recordings of John Stevens on percussion & cornet and Trevor Wattson soprano sax from the cassette archives of Trevor Watts.

Trumpet, synthesizer and microphones from the ea-improv duo of Graham Stephenson and Aaron Zarzutzki, an unusual palette of sounds mutating both instruments with both vengeance and guttural humor, a fascinating display of sound and momentum.

Intricately melodic and wonderfully ecstatic duos from trumpeter Natsuki Tamura and pianist Satoko Fujii improvising on 9 Fujii compositions.

With each track named after a type of cloud, Satoko Fujii and partner Natsuki Tamura's delicate and engaging impressionistic colors and rumblings.

Trumpeter Tamura and pianist Fujii return to the duo they've been recording for more than 15 years to explore a more quiet and lyrical side of their collaboration by reimagining compositions originally written for Tamura's Gato Libre quartet.

The duo of Pierre Tanguay on drums and percussion and Tom Walsh on trombone in a release of minimalist construction that blends composition and improvisation.

The duo of Ferran Fages on electronic devices and Eduard Maquez on percussion in a beautiful long-form drone, a drifting and haunting work that hangs off of slowly building crescendos which release to beautifully suspended sonic environments.

The meeting of Martin Tetreault and Otomo Yoshihide, two turntable master manipulators, in a studio recording from Montreal, in a collection of 21 improvisations that explore different themes.

Turntable duo of Martin Tetreault and Otomo Yoshihide in a collection of improvised recordings taken for a Spring tour in 2003 around parts of Europe.

Picking up where 1. Grrr leaves off, this album is the second addition of the turntable duo of Martin Tetreault and Otomo Yoshihide in a collection of live, improvised recordings.

Following 1. Grrr and 2. Tok, this is the third and final part of a series of live recordings from the improvising turntable duo of Martin Tetreault and Otomo Yoshihide.

Thomas Lehn & Gerry Hemingway's 3rd "Tom & Gerry" release presents tracks recorded in Europe from 2003-2006, incredible electro-acoustic improvisations.

The third collaboration from the duo of Israeli saxophonist Assif Tsahar and Japanese percussionist Tatsuya Nakatani, an amazing journey in tone and rhythm from two kindred spirits through 20 short, inventive, and stunning improvisations.

Wandelweiser artist Manfred Werder and Japanese field recording artist Toshiya Tsunoda in a large, layered work that merges and contrasts natural and urban sounds into a detailed work of subtle ambiance and intriguing sound.

Minimal sound sources and extraneous trumpet sounds using unusual techniques in a duo of subtle yet captivating recordings from these frequent collaborators.

Recordings of two German trumpeters--Birgit Uhler and Leonel Kaplan--both using extended techniques and modern instrumental language, splitting their recordings between the left and right channels for clarity in their fascinating and unconventional dialogs.

Surprisingly after long partnerships with Peter Brotzmann's Tentet and the saxophone trio Sonore, this is the first time that Ken Vandermark & Mats Gustafsson have recorded as a duo, here in 6 incredible improvisations balancing technique, power, and beauty.

Priska Walss and Gabriela Friedli's first duo release after 10 years of working together, trombone, alphorn, piano and organ in an unusual and striking dialog.

London saxophonist Trevor Watts teams up with pianist Veryan Weston for "5 More Dialogs" of labyrinthine and exultant improvisation, as only two masters of the form can create!

New York improvising artists trumpeter Jacob Wick and percussionist Andrew Greenwald in 4 tracks of minimally dense and persuasively smeary compositions.

Zuerich composer and soprano player Juerg Wickihalder (Irene Schweizer, Omri Ziegel, &c.) in duo with pianist Wiesendanger playing Wickihalder's compositions.

Avant folk artist Gosia Winter and guitarist Barry Chabala in a transcontinental collaboration suggested by Winter to bring both artists' sense of improvisation into new carefully crafted compositions.

New York School stalwart and John Cage collaborator Christian Wolff met AMM and EA-improvising guitarist Keith Rowe to perform this extended work at erstwhile's AMPLIFY 2011 show in NYC's The Stone.

Cantankerous and brilliantly executed improvisation continuing the partnership of percussionist/live electronician Lytton and trumpet/amplifier player Nate Wooley.

Acclaimed free improvising saxophonist Jack Wright is joined by his son Ben on double bass for these exceptional duos that balance space and color through extended techniques and an impecable sense of timing.

AMM percussionist Eddie Prevost on roto toms with alto saxophonist Seymour Wright in a 5 part series of G.A.M.U.T. free improvisations and interactions.

Xu Fengxia traditional Sanxian & Guzheng player and free vocalist in duo with drummer/percussionist Lucas Niggli for suspenseful cross-cultural improvisations.

Two of the original innovators of the Tokyo "onkyo" sound movement, understated ea-improvisations, in their first collaboration, constructed asynchronous recordings.

Omri Ziegele, saxophonist, composer and und leader of the small orchestra Billiger Bauer presents a duo with younger Zurich pianist Yves Theiler, presenting melodic compositions from both players performed with beautiful intuitive dialog.

The long-standing duo of alto saxophonist John Zorn and guitarist Fred Frith continues with these "late works", improvisations in a unique language of formidable breadth and imagination.

Twelve bizarre compositional miniatures for the blazing duo of Marc Ribot and Trevor Dunn, combining classical 12-tone lyricism with rock intensity and improvisational madness.

Two iconic New York players - saxophonist John Zorn and guitarist Thurston Moore - meet for the first time, presenting seven exhilarating improvisations of great diversity, inventiveness, sonic power, and creative drive.

A beautiful solo album from Montreal/Brooklyn trumpeter Philippe Battikha, who also developed the field recordings over which he plays, joined on two tracks by double bassist Johan Fortune, in a melancholy and haunting album of emotionally rich soundscapes.

The long-running duo of US-based Japanese percussionist Tatsuya Nakatani and French saxophonist Michel Doneda in an album merging superb technical skills and creative approaches in an almost telepathic dialog of surprising twists and turns.

The 3rd release from the duo of Chick Lyall (piano, violin, synthesizers, modules, computer) and David Garrett (drums, percussion, prepared piano, zither, electronics) in an inventive set of pieces that use a "kitchen-sink" approach to creating mesmerizing and inexplicable music.

Delightful and eclectic improvisations by Malcolm Ball on the historic Ondes Martinot synthesizer and percussion, and Kate Cuzner on flutes, piano and live electronics, pushing the boundaries of musical intuition and imagination.

Celebrating Ivo Perelman's 25th anniversary as a recording artist in a duo with legendary vibist Karl Berger (here on piano) for a special recording brimming with lyricism and a unique mix of virtuosity, wild abandon and romance.

A collection of performances by tenor saxophonist Ivo Perelman and pianist Matthew Shipp, each piece named for characters from arias sung by Greek opera vocalist Maria Callas, 16 lyrical free improvisations as Perelman evokes Callas' distinctive voice.

A duo from Dave Phillips and Hirsohi Hasegawa, where Phillips' field recordings are filtered and effected by Hasegawa, creating an intense mixture of apocalyptic insect environments and inexplicable sound, slowly unfolding and captivating at high volume.

Intense free improvisation recorded in the studio from the Netherlands duo of Rene Aquarius on drums and Otto Kokke on saxophone, in an ever-shifting display of technical prowess and twisted approaches to playing, a controlled grindcore of cathartic jazz.

A self-aware release presenting 3 exercises exploring the relationship between performer and audience, DiSanto & Hoffman recorded and reworked these pieces from live performance, including introductions and explanations, using sound created from common objects and stochastic synthesis.

Five extended improvisations from New York collaborators, legendary drummer and percussionist Milford Graves and bassist Bil Laswell, who have worked together for several years developing a uniquely active yet dream-like, deeply rhythmic sound world.

Balancing detached and decontextualized sound with melodic moments, the New York duo of Kevin Parks and Vanessa Rossetto construct 3 large works of sound, journeys that take the listener in and out of the process with concrete, studio, and inexplicable sound.

The quartet of Cosottini, Melano, Pisani, Miano (EAQuartet Electroacoustic) in compositions referring to the 4 cardinal map points using graphic scores, games, open readings, &c.

Legendary trumpeter, composer and educator Bill Dixon in a 17 piece orchestra playing original compositions live at the 12th Vision Festival in New York City.

Parker's definitive document of his Curtis Mayfield songbook project with Hamid Drake, Dave Burrell, Sabir Mateen, Darryl Foster & Amiri Baraka, promoting Mayfield's positive messages of hope and fortitude.

American and London artists Anthony Braxton and Derek Bailey performing as a duo at The Victoriaville Festival in 1986, an amazing exchange between two noted masters of free improvisation.

Part of Rencontres de musiques spontanees 2009, Jean Derome on bird calls, flute & sax met percussionist Le Quan Ninh playing objects over bass drum for a long work of unusual improvisation.

The duo of saxophonist Michel Doneda and clarinetist Joris Ruhl in subtle recordings from The ferme du linge, Orbey, France, emphasizing unusual aspects of their instruments, tonal interactions, and extended techniques.

Great duo set from bassist Dresser and "hyperpiano" (read: heavily prepared) player Maroney.

Avant noise guitarist Haino Keiji and experimental sound artist Masami Akita (Merzbow) in a powerful and varied live set at the Victoriaville, May 2007.

Beautiful string work and lovely and unusual vocals from the duo of Mary Halvorson & Jessica Pavone, music of "stark clarity and introspection."

Chicago saxophonist Keefe Jacksonand Swiss pianist Hans-Peter Pfammatter in a contemplative and expressive duo album demonstrating powerful technique and subtle restraint through nine improvisations.

An inventive, exuberant and absolutely amazing duo record from free jazz legends Edward "Kidd" Jordan and Hamid Drake recording live at New Orleans' renowned Piety Street Recording.

The result of three improvisation sessions held in 2003 from these frequent collaborators.

Pianist Magda Mayas and saxophonist Christin Abdelnour recorded these 2 tracks at a concert organised by Radio France at Meteo Festival, Mulhouse, idiosyncratic and distinctive playing using extended and unusual techniques.