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a cutting edge ensemble of improvising vocalists


«For both the singers and their audience, this is music in a constant state of discovery.»

Richard Williams, music publicist and former director, Jazzfest Berlin



Trondheim Voices is a groundbreaking Norwegian ensemble of improvising vocalists, constantly challenging and changing the framework for how a vocal ensemble can produce sound art. Each singer’s individuality, and her timbre combined with the other voices, are in focus, resulting in a unique quality to the groups collective sound. Through their many collaborations with cutting edge composers like Christian Wallumrød, Marilyn Mazur, Jon Balke, Mats Gustavsson and Maja Ratkje, they have made solid statements as developers within vocal and improvised music. Trondheim Voices are exploring and developing new music in the interaction between the singers, the audience, their surroundings and new technology.

« ... filled with mystique and mystery, borrowing aspectsfrom hypermodern theater and abstract opera, bringing on multilayered non-vocalisms, slow electronica pulses, modular twists and other unusual proceedings which all fall into place to create an album like no album you ever heard.»



Trondheim Voices is a pool of 12 soloist singers, who all have specialized in different types of improvisation.

Each singer’s individuality, and her timbre combined with the others, are in focus, resulting in a unique quality to the groups collective tone:

Sissel Vera Pettersen (Artistic leader from 2016)

Tone Åse-Heidi Skjerve

Ingrid Lode-Siri Gjære

Live Maria Roggen

Anita Kaasbøll

Torunn Sævik

Kari Eskild Havenstrøm

Natali Abrahamsen Garner

Siril Hauge

Marianna Sangita Røe


Trondheim Voices is a part of Mid-Norway Center of Jazz, and is funded by the Arts Council Norway, Trondheim Municipality and Trondheim County Municipality.


What happens when 2/3 of the Norwegian power-trio "Supersilent" use Trondheim Voices as a living breathing instrument?

In this work, the pioneering vocal ensemble uses its voices as one massive microtonal instrument - replacing words with tones, exploring multi-voice drones and sounds in a timeless chant-like manner.

FOLKLORE explores the distance between acoustic and electronic sound, harmonic and microtonal music, the known and unknown.  In this extraordinary concert performance, time ceases and opens up to new ways of listening and letting go.

by Helge Sten & Ståle Storløkken for Trondheim Voices

Our original compositions and improvisations with our custom made live electronic controllers.

Surround sound, video, costumes and light scenography - an immersive audio visual concert.

by Trondheim Voices and sound designer Asle Karstad


An electro acoustic improvised concert. Very flexible format, most often we perform it with audiences around us, in surround sound. 

In this concert-perfomance Maja Ratkje and Trondheim Voices explores the personal origins of the shape and sound of a singers voice, using biographical material, theatrical tools, poetry, comedy and an impressive range of acapella singing. The performance have played in theatres and festivals throughout Norway to raving reviews, and was released as the double album Ekko Chamber 3.0 in 2020.

by Maja S.K. Ratkje and Trondheim Voices

The remarkable and ever-innovating sound artist, Christina Kubisch is known for her electrical walks, evolving since the early 1970s, where you can hear the otherwise inaudible electromagnetic noise of the environment through specially designed headphones.

While researching electromagnetic waves in Trondheim, she uncovered the sound of the tram from the city centre to the surrounding hills. They were so impressive and musical that she immediately decided to base her piece for Trondheim Voices on this discovery. The vocal ensemble Trondheim Voices then ‘sang along’ to Christina’s tram recordings, creating new vocal parts which went through several transformations, being rerecorded until the voices sounded ethereal and abstract. That stage is the starting point for Strømsanger (‘electrical singers’)

composed by Christina Kubisch for Trondheim Voices (6 singers), and prerecorded electromagnetic sounds and voices.

Photos: Martynas Milkevicius




Jonas Winterhalter

+ 49 176 931 480 32

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