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.

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.

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.

A dynamic and exciting concert captured during the 2018 CreativeFest XII of a conduction by Ernesto Rodrigues leading an ensemble of 28 free improvisors performing on a mix of traditional acoustic & modern electronic instruments, plus a toy piano, with powerful wind & string sections, as Rodrigues directs the musicians into both passionate and peaceful sections.

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.

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.

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.