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

"As always, the geometry is of the n-dimensional sort. The number of dimensions that vary is impressive: membership, instrumentation, location, duration, and so on. Certainly, the overall shape of each VGO performance is highly variable...

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.

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.

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.

The duo of Carlos Santos and Jorge Valente developed this project around the metallics of a cymbal, recording it and digitally manipulating and transforming it into a musical structure using the maxmsp programming; this recording was captured live at the Hertzoscopio Festival in Fabrica da Polvora, Barcarena, Portugal in 2004.

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.

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.

Incredible and telepathic ea-oriented improv from violist Ernesto Rodrigues, saxophonist Martin Kuchen, cellist Guilherme Rodrigues, and electronicist Carlos Santos.