Correctly configured, the Portugese ensemble Octopus is an octet, and though named after the most common of the breed, this 8-tentacled orchestration of strings, flute, trumpet, piano, guitar, electronics and percussion, all using extended techniques, slides deftly and with incredible restraint through a large, detailed dark-water work of electroacoustic improvisation.

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.

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.

"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 ...