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by Hydra Ensemble

  • Compact Disc (CD) + Digital Album

    Includes unlimited streaming of Voltas via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.
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I 15:24
II 03:18
III 06:26
IV 06:51
V 03:31
VI 09:36


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Rotterdam-based quartet Hydra Ensemble features cellists Nina Hitz and Lucija Gregov, double bassist Gonçalo Almeida and Rutger Zuydervelt on electronics. The ensemble is a juncture of four distinctive expressions finding common ground – together they form a four-headed entity that emerges from highly pensive collective improvisations, creating an intricate patchwork of concurrent melodic lines, textural explorations and expansive drones. Its sonic language exists on the cracks of free improvisation, minimalism and experimental foreboding ambience; and is as ominous and majestic as the multi-headed Greek mythical animal they are named after.


released March 1, 2021

Gonçalo Almeida: double bass
Nina Hitz: cello
Lucija Gregov: cello
Rutger Zuydervelt: electronics

Recorded at the Old Church, Rotterdam Charlois on 11 July 2020
Edited and mixed by Rutger Zuydervelt
Mastered by Daniele Martini
Photography by Pedro dos Reis
Graphic design by László Szakács
Produced by László Juhász
Special thanks to Jaap van Gils


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Machinefabriek Schiedam, Netherlands

Rutger Zuydervelt

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