Emulating the sounds and intentions of cranes through string improvisation and unusual techniques, the quartet of Estonian violinist Elo Masing, German violinist Dietrich Petzold, and Portuguese violist and cellist Ernesto and Guilherme Rodrigues name each of 8 tracks on the behavior of cranes, from forming a flock, migration, fighting, ritual dancing, to nesting.

This supergroup of strings--16 musicians on violins, viola, cellos, double basses, piano, psaltery, zither, and guitar--in an intensely restrained collective improvisation recorded live at O'Culto da Ajuda, Lisbon, Portugal in 2017, as String Theory's 4th album continues their title themes from the physical universe named here for the rare metalloid "Tellurium".

A live recording at O'Culto da Ajuda, Lisbon, during the 2017 CreativeFest #11 from the quartet of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, Gianna de Toni on double bass, and Vasco Trilla on percussion, a sinuous, curving extended improvisation of subtle shades, with certain rotations more forceful, but always gravitating to quietude.

An exciting meeting of multi-generational and multi-national, forward-thinking free improvisers performing live at Klub Demboh in Berlin in 2017, from the sextet of Axel Dorner (trumpet), Mia Dyberg (alto saxophone), Pierre Borel (alto saxophone), Ernesto Rodrigues (viola), Tristan Honsinger (cello) and Guilherme Rodrigues (cello).

The affect of Carlos Santos' electronics and recordings are the foundation of this Portuguese quintet's improvisations, creating an environment over which Ernesto & Guilherme Rodrigues on viola & cello, Eduardo Chagas on trombone, and Andre Hencleeday add subtle gestures of unusual approaches to their instruments, in a mysterious album of lowercase improv.

The Creative Sources core string improvisers of violist Ernesto Rodrigues, cellist Guilherme Rodrigues, cellist Miguel Mira, and double bassist Alvaro Rosso, with frequent collaborator percussionist Vasco Trilla, are joined by German violinist Harald Kimmig (Trio Kimmig) for a dynamic album that fluctuates from acoustic lowercase to rapid pointillistic improv.

Two mesmerizing, diverse, and incredibly sophisticated large scale conductions led by Ernesto Rodrigues and an ensemble of more than 30 performers on reeds, guitars, strings, electronics, pianos, voice, megaphone, brass, drums and percussion, rich yet restrained with moments of mystery and excitement, in two complete concerts from Lisbon in 2017 & 2018.

Swedish double bassist Johan Moir, who focuses on extended techniques, preparations, Just Intonation and psychoacoustic phenomena, joins with cellist Guilherme Rodrigues in the studio in Berlin to record these 9 dialogs of haunting string improvisations, pushing the limits of their "hollow wood" instruments to create a vast palette of sound and approaches.

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.

A trio of free improvisers recording five detailed and subdued dialogs in the studio, from trombonist Matthias Muller (Splitter Orchester), cellist Guilherme Rodrigues, and guitarist Eric Wong, collective improvisation guided by long pointillistic passages that converge into lyrical focal points, a profound example of concentrative discourse.

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.

1. Plane, Line Segments, Rays And Some Dissipations 49:49

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.

Drawing its name from the seven members making up this string ensemble led by violist Ernesto Rodrigues, String Theory complements the concurrent Lisbon String Trio albums by magnifying concepts in freely improvised string interactions, using unusual harmonics, melodic and percussive approaches to instruments, and quickly moving quietly intense interaction.

Like the Lisbon String Trio, this trio explores strings in a viola, cello and double bass trio configuration, from Creative Sources core players Ernesto Rodrigues, Guilherme Rodrigues, and Alexander Frangenheim, exploring a classic trio concept towards new expressions and boundaries, through spritely interaction and sonic expedition.

1. L'ennui 42:00

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"[...] Blattwerk's two torrents of strings move like a waveform, cresting and dipping in volume and intensity. The quintet features an unusual line-up-violin, viola, two cellos, and Trilla's drums-and shifts between an indeterminate wor...

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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.

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.

1 Suspensao X 31:47

"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...

"A friction quartet, at times quite energized. In addition to viola, cello, and double bass, the instrumentation is notable for Kriton B.'s daxophone, a rather obscure instrument in the class of "friction idiophone," which consists of a...

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.

Recorded over a 3 year period, the trio of Portuguese string improvisers Ernesto Rodrigues on viola and Guilherme Rodrigues on cello met with New Haven, Connecticut double bassist & synth player Daniel Barbiero, developing this detailed, two part lowercase acoustic improvisation with a spacious, patient feeling that interacts with its ambient environment.

Named for the Leipzig, Poland location in which this live concert was recorded, the acoustic free improvising quartet of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, Nuno Torres on alto saxophone, and Johannes von Buttlar on percussion, explore extended ranges and approaches to their instrument in these building and detailed dialogs.

Recorded in the studio in 2017, "Cyclic Symmetry" presents an electroacoustic trio of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, and CS mainstay Carlos Santos on field recordings, in a minimal work suggested to be heard on infinite loop, contrasting deep silence with sections accenting the slow, interwining harmonics of both Rodrigues' string work.

Titled for the Amazonas Indians, Brazilian sound sculptor Marco Scarassatti performs on his self-made instrument the Kraiser in a quartet with Creative Sources regulars Ernesto Rodrigues, Guilherme Rodrigues, and Nuno Torres for a dream-like set of improvisations named with indigenous expressions, blending neoprimitivism with creative acoustic improvisation.

A sense of both lightness and weight drawn from Portuguese viola player's Ernesto Rodrigues' 18-piece String Theory, in a large and detailed improvisation using an incredible array of string sources, including viola, harp, violin, cello, viola da gamba, double bass, classical, acoustic and 12-string guitars, mandolin, zither, harpsichord, and piano.

Strings and small percussion imbue this darkly beautiful set of extended improvisations from the Portugese trio of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, and Monsieur Trinite on small percussion; creative richly open soundscapes with intriguing interventions.

A 46-member orchestra of electroacoustic improvisers performing live at St. George's Church in Lisbon in 2015, for an extended and dynamic tapestry of sound conducted by leader Ernesto Rodrigues, with an impressive list of artists familiar to those following the CS label.

A 5-part introspective improvisation from the trio of Creative Sources leader Ernesto Rodrigues on violin, viola, and electronics; Guilherme Rodrigues on cello, pocket trumpet, and radio; and Jassem Hindi on clarinet; subtle work with extended techniques and unexpected punctuation.

Two freely improvised works performed on cello, sine waves, cracklebox, bottle, synth, cornet and objects from the quartet of frequent collaborators Guilherme Rodrigue, David Area Guillermo Torres, and Tomas Gris, a mix of subtle improvisation and subsuming sound.

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.

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 opening moments of "Stream of Consciousness"are disorienting. Awash in reverb, as in an empty warehouse or a bounded public square, Maria Radich's vocals mingle with those of an audience of unknown size. Camera shutters click, men ...

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.

An immersive album of collective sound from the Portugues quintet of Ernesto Rodrigues on viola, Guilherme Rodrigues on cello, Nuno Torres on alto saxophone, Eduardo Chagas on trombone, and Carlos Santos on computer, developing rich sonic environments of great detail and intense patience, a tremendous journey that rewards the careful listener.

The second volume of the project heard in the previous Creative Sources album, "Suspensao", here in a 9-piece electroacoust ensemble with viola, cello, doublebass, alto sax, trombone, piano, electric guitar, computer and percussion, suspenseful lowercase music that unfolds in mysterious, beautiful and rewarding ways.

An exceptional lowercase acoustic improvisation album from some of the finest of Europe's outside-technique free improv players, with frequent collaborators and label-mates Ernesto Rodrigues on viola, Nuno Torres on alto sax, and Guiherme Rodrigues on cello, in quintet with Red Trio pianist Rodrigo Pinheiro and French improv drummer Naoto Yamagishi.

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.

A lowercase meeting of strings, objects, microphones and computer between core Creative Sources members Ernesto Rodrigues on viola and Guilherme Rodrigues on cello, and Karne Decorne (objects) and Simon Proffitt (microphones & computer), investigating microsound in four unhurried conversations that include moments of odd interjections, tones, and timbre.

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.

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.

Orchestrated from strings, piano, percussives, laptop & objects, this quintet creates a complex collective voice from high- and low-frequency drones, dissonant long string tones, slow piano chords, metallic sounds, and rich electronics.

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.

A large group under the direction of violinist Ernesto Rodrigues (also on harp, metronome & objects) in 4 extended improvisations of great suspense and tension through sound and silence.