An album of patience and concentrated listening from the lowercase trio of David Area on electronics, Tomas Gris on guitar and objects, and Ernesto Rodrigues on harp and objects, each player subtly coaxing sounds out of their instruments while the electronics act as environmental ambience over which tones slowly voice, recede and occasionally punctuate.

A large work for cello, viola, sinewaves and electronics from the quartet of Guilherme Rodrigues, Ernesto Rodrigues, Ferran Fages, and Barriere, the first two foundation members for Creative Sources, the latter two frequent collaborators, Barriere bringing a mathematical background to the improvisation that blends acoustic and electronic sources in compatibly sinister ways.

Recording at Berlin-Wedding's performance space Werkhalle Wiesenburg in the summer of 2023, the free improvising chamber trio of violist Ernesto Rodrigues and cellist Guilherme Rodrigues meet with Portuguese flutist Carlos Bechegas, bringing contemporary classical technique to an extended and energetically tempestuous improvisation and a sprightly "Time Between".

Creative Sources regulars Ernesto Rodrigues on viola and Abdul Moimeme on electric guitar join the long-running duo of alto saxophonist Ilia Belorukov and electronics artist and Mikroton label-leader Kurt Liedwart to record these two lowercase electroacoustic improvisations, transmuting acoustic and electronic sound in both stark and subdued ways.

Berlin studio recordings from the free improvising quartet of Beat Keller on feedbacker electric guitar, Ernesto Rodrigues on violin, Rieko Okuda on piano and Guilherme Rodrigues on cello; four string players invoking the reptilian Mesozoic age through unusual approaches to their instruments, extending the palette of each while creating unexpected percussive elements.

Extended improvisations using a mix of acoustic and electric instruments from the sextet of Ernesto Rodrigues, d'incise, Cyril Bondi, Abdul Moiemem, Eduardo Chagas, and Nuno Torres.

Deviant beauty from the trio of Heddy Boubaker (sax), Ernesto Rodrigues (viola) and Abdul Moimeme (prepared electric guitar), dark and sinister improv using extended techniques and a quietly turbulent approach.

A studio recording from the electroacoustic sextet of saxophonist & cornetist Patrick Brennan, Red Trio bassist Hernani Faustino, and Creative Sources collaborators Maria do Mar on violin, Ernesto Rodrigues on viola, Miguel Mira on cello, and Abdul Moimeme on electric guitars & objects, in a spirited set of concise and open-minded free improvisations.

A set of succinct string improvisations using extraordinary technique and concentration with a chamber improvisation feeling, recorded at Vivaldisaal in Berlin from the quartet of Portuguese father & son improvisers Ernesto Rodrigues on viola and Guilherme Rodrigues on cello, and Berlin performers Julia Brussel on violin and Klaus Kurvers on double bass.

A studio recording bring three Portuguese string players--Maria do Mar on violin, Ernesto Rodrigues on viola, and Guilherme Rodrigues on cello--together with bass & soprano clarinetist Juan Calvi, for 9 succinct intertwining of energetic interplay, often chamber-oriented but all examples of masterful free improvisation exploring a diverse set of creative approaches.

A quintet of string improvisers in discerning dialog using viola, cello, double bass, electric guitar, piano & harp, from regular collaborators Ernesto & Guilherme Rodrigues, Miguel Mira, and Abdul Moimeme, plus Aural Terrains label leader Thanos Chrysakis.

Recording in Portugal, the quintet of Aural Terrains label leader Thanos Chrysakis on piano, Creative Sources label leader Ernesto Rodrigue on viola, son Guilherme Rodrigues on cello, Miguel Mira on double bass and Abdul Moimeme on electric guitar, three parts of microscopic collective electroacoustic improvisation of highly focused, detailed interplay.

Berlin recordings from the lowercase chamber improvising string quartet of New Zealand violinist Sarah Claman, Portuguese violist Ernesto Rodrigues and cellist son based in Berlin, Guilherme Rodrigues, with Swiss sound artist Caroline Cecilia Tallone on electroacoustic hurdy gurdy & amplified objects, exploring three shadow aspects of "Umbra", "Penumbra" and "Antumbra".

Referencing the asian evergreen shrub "Hoya" through a series of solos, duos and quartets between Portuguese string players Maria da Rocha on violin, Ernesto Rodrigues on viola and Joao Madeira on double bass with visiting US bassist Daniel Levin on cello, first in four solo performances of remarkable technique, then permutations of duos, culminating in two quartet improvisations.

A subtle album of acoustic interaction recorded at Berlin's Noiseberg from the quartet of Miriam den Boer Salmon on violin, Ernesto Rodrigues on viola & zither, Fredrik Rasten on acoustic guitar, and Guilherme Rodrigues on cello & percussion, sounding almost electronic in their frictional technique and harmonic overtones, ebbing and flowing from active interaction to tranquil discourse.

An exquisite and mysterious album of free improvisation merging acoustic and subtle electroacoustic elements, from the trio of Bertrand Denzler on tenor saxophone, Ernesto Rodrigues on viola and Abdul Moimeme on electric guitar & objects, recording in the studio for this extensive work in four parts that transitions between moments of transfixing sound and cautious motion.

An extended improvisation of mostly quiet, occasionally cantankerous, but always intriguing free music, primarily acoustic playing with a strong cast of string players, plus reeds, keys, and computer, creating suspenseful music of great tension and impressive restraint as the sound evolves in gradations and facets of sound.

"3 Phases", or 3 aspects of the approach that violist Ernesto Rodrigues applies to improvisation, in 3 different groupings over 3 different concerts at O'Culto da Ajuda, in Lisbon, here in an electroacoustic ensemble with Miguel Mira, Guilherme Rodrigues, Joao Silva, Eduardo Chagas, Paulo Curado, Noel Taylor, Miguel Almeida, Andre Holzer, Andre Hencleeday, Carlos Santos, and Joao Valinho.

An electroacoustic octet drawn from the collaborative community surrounding Creative Sources, captured live during the Small Format Materials Festival at Galeria Monumental, in Lisbon in 2019, a subtle and substantial work of intimate tension and quietly detailed interaction, seemingly minimalistic yet dynamically a narrative evolution of sublime patience.

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.

A live recording from Portugal's Cine-Theatre Curvo-Semedo of the minimal ea-improv quartet of trumpeter Axel Dorner, violist Ernesto Rodrigues, prepared electric guitarist Abdul Moimeme, and Ricardo Guerreiro on computer.

Recording live in Berlin at Werkhalle Wiesenburg, the quartet of Portuguese father/son string players Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, Danish saxophonist Mia Dyberg on alto sax, and Polish double bassist Tomo Jacobson present a precisely controlled concert of subtly detailed free improvisation using impressive technique and momentum.

Two strings, sax, bass and percussion from the free improvising chamber jazz quintet of Mia Dyberg on alto saxophone, Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, Johan Moir on double bass and Jose Oliveira on percussion, in an interactive and dynamic live performance recorded in 2018 during the CreativeFest XII at O'Culto da Ajuda, in Lisbon, Portugal.

A composite of environmental sounds, electronics, and viola, recorded in Barcelona, Spain and Lisbon, Portugal from intrepid audio explorers Ferran Fages and Ernesto Rodrigues, the single long work taking the listener on a theoretical journey of transparent traffic, squealing wheels and indeterminate location, engrossing in its detail and the mystery it presents.

An unusual improvising string quartet plus alto saxophone, Thea Farhadian (violin), Ernesto Rodrigues (viola), Guilherme Rodrigues (cello), Klaus Kurvers (double bass) and Nuno Torres (alto saxophone) present the 11-part "De-col//age_", a slowly-developing work balancing unconventional approaches to their instruments with more conventional strategies.

The cosmological concept of the aeon, the conflict between matter and spirit, is explored in eight "Chronicles" of collective free improvisation using impressive technique and concentrative interaction from the Portuguese quartet of Flak on acoustic guitar, Guilherme Rodrigues on cello, Bruno Parrinha on bass clarinet and Ernesto Rodrigues on violin.

A live recording from the acoustic septet Free Music 7tet of Ernesto Rodrigues (viola), Luiz Rocha (clarinets), Guilherme Rodrigues (cello), Eduardo Chagas (trombone), and (piano), Hernani Faustino (double bass) and Paulo Ferreira Lopes (drums), performing at O'Culto da Ajuda, for five improvisations from active free improv to lowercase exploration.

Joing Portuguese and Spanish improvisers for four recordings in Bilbao, Spain, this sextet presents sound works using unusual orchestration--piano harp, viola, guitar, metals, electric organ, paper, contact mics, and electronics--balancing spacious exploration with assertive moments of percussive and caustic sound, evolving bold sonic and timbral combinations.

"While the previous Garcia/Branche CD seemed also improvised to me, this five-person work is of the two the more improvised one. The quintet of players also like their sounds to be sustaining, placing bows on strings, but also motorized...

German composer working in Budapest Nikolaus Gerszewski does not consider the score for this piece a composition, but rather a basis for a process, which is executed live at Fabrica Braco de Prata with Gerszewski himself plus improvisers Ernesto & Guilherme Rodrigues, Pedro Roxo, Nuno Torres, Armando Pereira, Carlos Santos, Pedro Castello Lopes & Andre Mota.

Glasgow's Improvisers Orchestra from the CCA Glasgow performing three free improvisations and a discretely structured piece by Raymond MacDonald.

Saxophonist Guionnet guides this quartet of sax, viola, cello, & percussion, including label leader Ernesto Rodrigues, delicate yet detailed improv of a high order.

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.

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.

Two CDs representing two extended improvisations of the IKB Ensemble with slightly different personnel, with each ensemble slowly unfolding an amazingly textured work of acoustics and electronics with strong intent and incredible technique, balanced by close listening and attention to detail; an excellent 21st century improvisation orchestra captured live.

Sealed copy. A large Lisboa ensemble presenting a collective improvisation titled after a painting by Yves Klein, with performers including Ernesto Rodrigues (baritone violin), Miguel Mira (bass), Nuno Torres (sax), Carlos Santos (electronics), Rodrigo Pinheiro (piano), &c. &c.

Portugal's IKB Ensemble is an electracoustic improvising ensemble with a strong string and wind section, balanced with electric guitar, electronics, and percussion, each album focusing on an object--an art work, Dracaena Draco (Dragon Tree), Chelonoidis Nigra (Giant Tortoise)--and here taking on the Ornithorhynchus Anatinus, or platypus, in 3 fascinating movements.

IKB continue their series of albums graced with taxonomic latin names for animals, here with the North Island brown kiwi bird, as the string- and wind-heavy electroacoustic ensemble led by violist Ernesto Rodrigues present this extended improvisation of subtle motion and understated complexity live at O'Culto da Ajuda, in Lisbon, Portugal in 2017.

Ernesto Rodrigues leads a 16 piece orchestra of strings, reeds, winds, voice, brass, accordion, electric guitar, electronics and percussion through the elaborately restrained work "Chelodnis Nigra", rewarding the careful listener with fascinating layers of sound.

The large IKB electroacoustic ensemble of diverse orchestration led by violist Ernesto Rodrigues, where each release is characterized by an animal, here with the long-snouted seahorse in an extended improvisation recorded at CreativeFest XIII at O'Culto da Ajuda, Lisbon, 2019, building to undulating cycles of intense interaction of absolutely precise control.

IKB, a ten-piece reductionist electroacoustic ensemble of strings, reeds, guitar, computer, percussion, piano, drums & objects, continues their exploration of exotic animal species with this 2020 live performance at O'Culto da Ajuda in Lisbon, Portugal, detailing the long-billed shore bird Limosa through intricate, restrained and remarkable expression.

Referencing the work of French artist and composer Yves Klein, this large group of Creative Sources regulars perform the 4 part Monochrome Bleu Sans Titre, a subtle and rich work of acoustic and electronic improvisation.

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.

One of Portugal's most interesting large scale lowercase ensembles led by violist Ernesto Rodrigues, with frequent Creative Sources collaborators including Nuno Torres on alto sax, Carlos Santos on electronics, Guilherme Rodrigues on cello, Miguel Mira on bass, 14 musicians move with subtlety in a tapestry of electroacoustic resonance and mystique.

Post-pandemic, the electroacoustic IKB ensemble returned to the stage in 2021 at O'Culto da Ajuda in Lisbon with some of Portugal's finest improvisers performing under the direction of violist Ernetso Rodrigues, to express in sound the large rainforest beetle Titanus Giganteus, represented in an extended collective improvisation of restraint fueled by masterful and creative skill.

Unusual approaches to string improvisation from the quartet of Ernesto Rodrigues (viola), Guilherme Rodrigues (cello), Maria da Rocha (violin), and Miguel Mira (double bass), using extended techniques in subtle yet detailed discourse yielding unexpected qualities to their instruments.

With an ensemble of adept improvisers including Luis Vicente on trumpet, Nuno Torres, Jose Lencastre and Bruno Parrinha on reeds, Luis Lopes on guitar, &c, Creative Sources leader and violist Ernesto Rodrigues' Isotope Ensemble examines the element "Helium" in a monumental 44-minute electroacoustic improvisation recorded live at O'Culto da Ajuda, in Lisbon.

Creative Sources collective Isotope Ensemble led by Ernesto Rodrigues performed with a large electroacoustic group continues their investigation of isotopes, focusing on Lanthanum, a soft metal used in flints, through subtly-developing interplay the band, moving as one body, reaching several highly controlled periods of passionate improvisation, contrasting with beautifully serene sections; impressive.

Recorded at CreativeFest#12 in Lisbon at O'Culto de Ajuda, the 21-piece electroacoustic ensemble Isotope takes on the chemical element Radium in a gripping piece of evolving improvisation, intensely restrained and extremely detailed, orchestrated with cello, baroque violin, double bass, acoustic & electric guitars, zither, psaltery, winds, brass, keys, electronics and percussion.

Continuing their exploration of isotopes, here focusing on the unstable element Uranium, the Portuguese Isotope Ensemble led by violist Ernesto Rodrigues presents two stunningly detailed concert performances from the 2021 CSFest XV at O'Culto da Ajuda in Lisbon, with some of Europe's leading improvisers taking on U92 in both "Electroacoustic" and "Acoustic" properties.