Aptly described as chiaroscuro--a veritable play of light and shadow in quick-witted--through nearly microscopic and highly interactive acoustic improvisation from the quartet of Ernesto Rodrigues on viola, Maria da Rocha on violin, Bruno Parrinha on clarinet & bass clarinet and Jose Oliveira on percussion, performing live at Galeria Monumental, in Lisbon in 2022.

A joint release with the Berlin record label Maybee Records run by cellist Hui-Chun Lin & Shuichi Chino and Creative Sources, this 2021 concert at Berlin's Kuhlspot Social Club brings together four cellist for an incredible and somewhat vicious display of free improvising string interaction using incredible technique, texture, and intent listening; wild!

A collective trio in the free jazz idiom from Hugo Costa on alto saxophone, Raoul van der Weide on double bass & percussion objects and Onno Govaert on drums, recording in the studio in Rotterdam for two extended and two succinct improvisations, building their conversations from solo playing that gradually yields to group dialog of evolving intensity.

Lisbon String Trio of Ernesto Rodrigues on viola, Miguel Mira on cello and Alvaro Rosso on double bass continue their series adding a fourth player to their unique form of string improvisation, here with reeidst Bruno Parrinha on alto clarinetist for an extended expedition into highly articulate playing as they explore the dada rejection of logic, reason, and aestheticism.

A confluence of reeds from Bay Area saxophonists David Boyce and Phillip Greenlief, both performing on and professing an open love letter to the tenor saxophone, the positioning of each clear through stereo placement as they improvise seven dialogs of intent listening and tremendous technique, from high speed intertwining to introspective contemplation.

Continuing Rodrigues' post-Cage series of single-track acoustic improvisations, this 2025 quintet with Miguel Mira, Flak, Tiago Varela, and Manuel Guimaraes blends viola, cello, electric guitar, fan organ, melodica, and piano in an evolving tapestry of mysterious breath, subtle continuity, and fragile sonic space recorded live in Lisbon with profound delicacy and restraint.

A live recording of free improvisation recorded at Theater im Viertel, in Saarbrucken, Germany in 2021 from the SteDaJoDa quartet of Daniel Studer on double bass, Stefan Scheib on double bass, Daniel Weber on drums and Johannes Schmitz on guitar, the dark double bass foundation and floating ("Schwebend") percussion work balanced by Schmitz' blues oriented electric.

Four improvisations recorded iteratively during the pandemic and assembled into this exquisitely subtle two-part composition with Eva Maria Houben's piano & organ recorded in Berlin in 2020, Guilherme Rodrigues's cello recorded in Berlin and Ernesto Rodrigues's zither recorded in Lisbon in 2021, merged with nocturnal recordings from Carlos Santos captured in Spain & Portugal.

Recording at Studio CCAM Scene Nationale de Vandaeuvre-les-Nancy in France, the freely improvising duo of contemporary saxophonist Violaine Gestalder and double bassist Louis-Michel Marion approach the five improvisations on Marges with an ear to patient sonic interaction through extended and unusual techniques on their instruments.

A reductionist set of spartan improvisation performed live at Casa da Cultura, in Setubal, Portugal in 2021 from the trio of Ernesto Rodrigues on viola, João Silva on trumpet and Andre Hencleeday on piano, applying extended techniques on their instruments in a dark night, quiet but intently close listening conversation from three authoritative voices.

An experiment in inter-species communication between the avian artist Kakaduu and the three instrumentalists Hui-Chun Lin (cello), Elo Masing (violin), Christoph Schwantke (8-string guitar), recorded during a private performance of two duets, which were developed from the practice of the three instrumentalists performing for Kakaduu over a period of two years.

Italian and Portuguese musicians meet in the studio in Berlin for a set of studio free improvisations, from Creative Sources father/son collaborators Ernesto Rodrigues on viola and Guilherme Rodrigues on cello meeting trombonist Davide Piersanti and vocalist Ligia Liberatori for twelve exceptionally open, informed and unusual conversations.

Recorded live in 2019 at Burgbachkeller in Zug, Switzerland, the international trio Jorge's Orbe creates tapestries of sound, bringing together free improvisers from three different parts of the world: Switzerland through trombonist George Francis Marti, Japan through pianist Tsukiko Amakawa, and Spain through Pelayo Fernandez Arrizabalaga on turntables and voice.

Six "Segments" A to F of powerful restraint and extended technique, recorded at Ausland in Berlin, Germany from the free improvising quartet of Quentin Tolimieri on piano, Ernesto Rodrigues on viola, Guilherme Rodrigues on cello and Fyodor Stepanov on double bass, the close associations between the Rodrigues' and Tolimieri & Stepanov evident through their shared aesthetic.

The Virtual Balboa trio of Philadelphia improvisers Zachary Darrup on guitar, Evan Lipson on double bass and Ben Bennett on percussion, all performers associated with Spring Garden Music & saxophonist Jack Wright, are joined by open-form trumpeter Greg Kelley for this wonderfully scrabbly and tenacious live set captured at Vermillion in Seattle in 2019.

Four string improviser convene at Ulrichsberger Kaleidophon, in Germany in 2021, two of them from Germany--Dietrich Petzold on violin, viola, clavichord & bowed metal, Matthias Bauer on double bass--and the Portuguese father/son complement of improvisers--Ernesto Rodrigues on viola and Guilherme Rodrigues on cello--for three works of delicately sinewy intersection & counterpoint.

The second album from the duo of cellist Paula Sanchez and oud player Christian Moser, a "restless hodgepodges of tensile agitation, percussive clatter, and nocturnal claustrophobia, with both Moser and Sanchez contributing conventional instruments abused with extended techniques (oud and cello, respectively) as well as objects and found ephemera."

Guitarist Ed Williams, active in the experimental music scene of Marseille, France, is heard here in two concerts presenting a triptych of solo performances on bowed classical and electric guitar, improvised with no effects, with two parts on electric guitar recorded at the concert series "Aux Soirs Du Chercheur De Noises", the 2nd, "Spectrum, NY" on classical guitar.

Two trombones free improvising in the studio in Koln from the Duo of Chicago's Jeb Bishop and Cologne's Matthias Muche, both members of the trombone trio Bone-Crusher with Matthias Muller, this album recorded in the studio in Koln just before Bone-Crusher's "Konzert Fur Hannes" (NotTwo), elucidating this facet of the trio in 10 insightful dialogs of awesome technique and wit.

Subtle acoustic improvisation from a global set of improvisors--Yu Lin Humm on cello, Pedro Frazao on euphonium, Ryoko Imai on marimba, percussion, Andre Hencleeday on piano, Philippe Trovao on tenor saxophone, and Ernesto Rodrigues on viola--in an attentive and tension-filled single movement, each player adding and reacting as ideas percolate and subsume.

A dynamic and exciting concert captured during the 2018 CreativeFest XII of a conduction by Ernesto Rodrigues leading an ensemble of 28 free improvisors performing on a mix of traditional acoustic & modern electronic instruments, plus a toy piano, with powerful wind & string sections, as Rodrigues directs the musicians into both passionate and peaceful sections.

A string quartet of doubled cello and viola, recording in the studio in Berlin in 2018, as free improving innovators, Creative Sources cellist and violist Guilherme Rodrigues and Ernesto Rodrigues, meet contemporary compositional and improvising cellist and violist Hui-Chu Lin and Marie Takahashi, their complementary approaches bringing unique voices to a captivating encounter.

A concise and essential concert from the Octopus octet, recorded in performances at O'Culto da Ajuda, in Lisbon, Portugal during the Creativefest XII, the ensemble of mostly acoustic instrumentation (cello, viola, flute, clarinet, classical guitar, piano, percussion and synthesizer) carefully evolving a shade of blue in subtle details of tense restraint.

Schwarm, or "Swarm", 13 is a German ensemble performing instant compositions, directed by clarinetist Rudi Debrunner and saxophonist Max Stehle, who also provides conceptions for the band, which is comprised of reeds, guitar, violin, viola, cello, piano, percussion, double bass, and voice, presenting (appropriately) 13 improvisations captured live at Studioboerne45.

A fascinating confluence of improvisation and contemporary compositional approaches from this Spanish ensemble led by composer and drummer Nasim Lopez Palacios, using 5 reeds, trumpet, flute, piano, electric guitar, harp, double bass, drums and electronics in an extended work exploring space, tension and motion, with a beautiful build to catharsis.

The Barcelona trio of Gorka Benitez on tenor saxophone & flute, Guillermo Celano on electric guitar, and Marcos Baggiani on drums, play a lyrical and bluesy brand of instrumental rock music which they describe as an eclectic approach to rock emphasizing pure energy and fun, in nine upbeat and groove-oriented tunes of tight and enthusiastic playing.

Recording at the 12th CreativeFest at O'Culto da Ajuda, in Lisbon, Portugal, the IKB ensemble is represented by 20 musicians for this performance, merging acoustic and electronic instruments including strings, brass, winds, self-made instruments, and percussion in a concert of intense constraint & patience, seething with detail and replete with consummate skill.

Two sets across two nights during CreativeFest #12 at O'Culto da Ajuda, in Lisbon, Portugal, in a septet of six acoustic sources--viola, cellos, flute, trumpet, piano and percussion--and electronics, an extended journey approached with quiet tension and incredible detail, the recording of the first set used as the basis for the 2nd to create a virtual ensemble.

Recording in New York at the Omi International Arts Center in 2018, the duo of German trumpeter Nikolaus Neuser and Brazilian bassist Carlos Eduardo Quebrada Vasquez, Quebrada expanding his bass through electronics, capture an inventive and active set of dialogs, rich in technical skill and continually surprising through twists and turns; action-packed and inspired.

Far ranging free improvisation from the Sao Paulo, Brazil quartet of Jorge Nuno on guitar, Romulo Alexis on trumpet, Vitor Vieira Branco on vibraphone, and Rafael Cab on drums, in ethnically rich and spiritual playing that incorporates beautiful atmospheric work, ruminating assertive playing, and idiosyncratic interaction with unusual technique and percussive instruments.

Thirteen emphatic "rituals" from the Argentinian duo of saxophonist Hernan Sama, recording in the studio as they employ an array of techniques including extended bowing and plucking approaches, saxophone smears, growls, vocal utterances, odd reed techniques, &c, to engage their listener's ears as they unfold dialog that merges jazz forms and fully free improvisation.

A subtle album of soundscape from the French trio of Violaine Gestalder on saxophones, Louis Michel Marion on double bass, and Stefania Becheanu on field recordings, depicting 3 virtual aural views of a single landscape, the field recordings conveying a sense of location as the bass and sax use extended techniques and subliminal playing to create their vista.

Recording at the Pied Nu Festival, in Le Havre, France in 2018, the trio of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, and Carlos Santos on electronics present an extended and mysteriously subtle album of electroacoustic improvisation, detailed and remarkably controlled conversation of near telepathic anticipation from three intimate collaborators.

Portuguese guitarist and experiementer Abdul Moimeme, once a student of US free jazz saxophonist Patrick Brennan, now joins him as Moimeme employs two electroacoustically altered guitars played simultaneously with objects, Brennan performing on sax and cornet, as they create unusual and assertive abstract sonic environments, intensely detailed and gripping.

A mysterious album of viola, viola d'amore, organ, and field recordings, merging the compositional minimal approach of Wandelweiser artist Eva-Maria Houben with Creative Sources performers Ernesto & Guilherme Rodrigues, the field recordings creating a virtual setting of environmental stillness, evoking slow motion in the unique "thisness" of haecceity.

The debut for this acoustic free improvising Amsterdam trio of Ziv Taubenfeld on bass clarinet, Henk Zwerver on guitar, and Maya Felixbrodt on viola, in a set of abstract improvisations of an active nature using unorthodox and extended techniques, with an upbeat sense of excitement and enthusiasm that allows for solo forays amongst great collective discourse.

A fiercely expressive debut from Portuguese duo Ricardo Guerra Pires and Bruno Parrinha, blending electric guitar, alto saxophone, subtle electronics, and noise-infused improvisation into a raw yet controlled exploration of sonic extremes, channeling the spirit of free jazz, punk energy, and avant-garde texture into six powerful and provocative pieces.

An intimate, texturally rich trio session recorded in Berlin between Ernesto Rodrigues on viola & crackle box, Guilherme Rodrigues on cello, and Maximilian Glass on percussion, navigating misty lowercase atmospheres, glitch-box coloration, and finely balanced interactions that unveil subtle surprise and collective improvisation within a tight, exploratory sound world.

Continuing Rodrigues' post-Cage series of single-track acoustic improvisations, this 2025 quintet with Miguel Mira, Flak, Tiago Varela, and Manuel Guimaraes blends viola, cello, electric guitar, fan organ, melodica, and piano in an evolving tapestry of mysterious breath, subtle continuity, and fragile sonic space recorded live in Lisbon with profound delicacy and restraint.

A live trio improvisation from violist Ernesto Rodrigues, tenor saxophonist Jung-Jae Kim, and bassist Alvaro Rosso, recorded at Lisbon's CreativeFest#18 at Casa do Comum, in Lisbon, unfolding as a 28-minute journey from hushed, lowercase textures to dynamic, scrabbly interplay, emphasizing timbral nuance and collective exploration in an intimate acoustic setting.

The Cologne-based free improvising trio Der Vierte Zustand — vocalist Hanna Schörken, guitarist Christina Zurhausen, and drummer Ramon Keck — om a compelling blend of experimental soundscapes, noise rock influences, and free jazz energy, driven by Schörken's acrobatic wordless vocals, Zurhausen's effects-laden guitar textures, and Keck's dynamic rhythms.

Hanna Schorken is a published German writer & poet, jazz vocalist and free improviser, since 2005 living in Koln and developing a personal and idiosyncratic approach to sound poetry and experimental voice recordings, heard here in a 7 part work where each movement completes the titles of the poem "I So Liked Spring"; "You"; "Told"; "Me"; "How"; "To"; "Dance".

An album for bowed strings, bowed metal, and double bass, from the quartet of Dietrich Petzold on violin, viola, bowed metal, Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, and Matthias Bauer on double bass, presenting a seven part suite recorded in the studio in Berlin, active and exciting music that bridges classical technique with free improvisation.

Using multiple voices, field recordings and electronics, Brazil-born composer living in Berlin Laura Mello works with spoken language as she explores human perception of acoustic phenomena in relation to spoken language, here in 8 compositions or excerpts that reveal hallucinatory and unusual aspects of speech complemented by elusive aural environments.

Four voices--Norbert Zajac, Brigitte Kupper, Gala Hummel, Iouri Grankin--sing and speak over the piano work of Russian improviser Andrei Razin in a moody and often startling album that set tonal environments or disorient the listener through constrasting layers of vocalization, as Razin darts among them or sets an atmosphere of lingering tones; often curious, frequently stunning.

"3 Phases", or different aspects of the approach that violist Ernesto Rodrigues applies to improvisation, in three different groupings over three different days, all live at O'Culto da Ajuda, in Lisbon, Portugal in 2018, here in an acoustic sax trio with strings, with Bruno Parrinha on soprano, Nuno Torres on alto, Paulo Galao on tenor sax.

Dedicating his album to Paul Burwell and Z'ev, Spanish percussionist Paolo Sanna demonstrates his many years of research in sound, silence, noise, experimentation, musical research and deconstruction through standard percussive devices and found objects, giving his playing a distinctive and personal palette which he plays with superb technique and timing.

Recorded on New Years Eve in Sintra in the Penedo region of Portugal, three strings--viola from Ernesto Rodrigues, cello from Guilherme Rodrigues, and a second cello from Miguel Mira--are joined by Carlos Santos on electronics for three extended and richly detailed improvisations, active yet concentratively controlled, using impressive and extended techniques.

Two string players, Swedish acoustic guitarist and banjo player Niklas Fite, and German double bassist Alexander Frangenheim, recording in the studio in Berlin in 2017 for 10 succinct improvisations ranging from quick interactive discourse of a pointillistic nature to near silent meditations using unusual and extended techniques, a quirky and informed album.

Finding common ground between the acoustic past and the electronic present, the duo of Christoph Schiller on spinet and Eric Ruffing on analogue synthesizer present two extended improvisations of tempered interaction, exploring periods of extended sound, timbre and decay, scrabbling inside playing, restrained electronic whines, and active pointillistic playing.