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.

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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...

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.

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.

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.

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.

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.

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.

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.

Three tracks of acoustic improv from an understated string quartet that uses extended techniques and the whole of their instruments to make unusual and rewarding music.

A single 34 minute live recording at Musica Portuguesa Hoje Festival in Lisbon, 2008 from this excellent set of expressive and contemplative electroacoustic performers.

Excellent, fun and slightly twisted free improvising quintet with Dennis Gonzalez, Mark Sanders, Alipio Netom, and father/son team Ernesto Rodrigues and Guilherme Rodrigues.