Eda Er — voice, electronics / Simon Sieger — trombone, tuba, piano

äbädä

Eda Er and Simon Sieger standing apart against a bare plaster wall, both dressed in black.

Two players, one room, no score.

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01

The duo

äbädä is the duo of Eda Er — voice, electronics — and Simon Sieger — trombone, tuba, piano.

They work without scores. Every piece begins as an improvisation between two people in one room and stays that way: nothing is quantised onto a grid, nothing is layered until one of them disappears. Both players are audible at all times.

The instruments are only half of it. Objects, breath, the wood of the piano, the metal of the trombone, the small resonances a recording would usually edit out — these carry as much of the music as the notes do.

What comes out sits between chamber music, free improvisation and musique concrète without settling into any of the three. The records are mixed in quadraphonic: the two players turn slowly in opposite directions through the room, and neither is ever fully absent from any corner of it.

The duo is based in France.

Close view of two clasped hands, one with red nail lacquer, against a plaster wall.
One wall, one grip, everything else improvised

Eda Er

Voice · Electronics

Composer, new media artist and vocalist. edaer.me

Simon Sieger

Trombone · Tuba · Piano

Trombonist, pianist and composer. simonsieger.info

02

Records

Unclassifiable Weather album cover: a dark storm cloud breaking over still water.

Unclassifiable Weather

2026—nyxphere—Six pieces—35:07

Six improvisations that move like unstable weather systems: sudden pressure changes, lyric fragments, noise storms, fragile melodic air, percussive objects. Not a fusion of genres — a climate in which genres appear briefly and disappear.

Recorded for piano, voice and objects, with no drone underneath and nowhere to hide. The concrete palette is drawn from the body: breath, whisper, mouth click, footstep, a heartbeat that slows across the last track. An A minor centre runs the length of it.

  1. 01Pressure System
  2. 02Small Storm for Piano and Mouth
  3. 03Weather Inside the Strings
  4. 04Objects in High Wind
  5. 05A Song Breaks the Forecast
  6. 06Afterpressure

Piano Simon Sieger  ·  Voice, objects, electronics Eda Er  ·  Label nyxphere

Get it on Bandcamp Listen on Spotify
Entre Deux Rivages album cover: marbled waves in black, teal and ochre on torn cream paper.

Entre Deux Rivages

2021—nyxphere—Seven pieces—38:44

Seven pieces written across a closed border. Separated by countries and composing in correspondence, each track went out as a letter and came back shaped by the other's voice.

Mistral came out of Marseille's gusts and a city locked indoors. Toi d'un autre rivage out of the two shores of Istanbul. Curfew Dance out of the night the curfews were announced in France. The record is the debut, and it is still the clearest statement of what the duo is for: sound as correspondence, absence as dialogue.

  1. 01When the Rivers Meet the Seas
  2. 02Mistral
  3. 03I Am So Lost in Blue
  4. 04C'est le son que vous obtenez en caressant une orchidée
  5. 05Toi d'un autre rivage
  6. 06Curfew Dance
  7. 07Meşk

Mix & master Laçin Şahin  ·  Assistant engineer Ece Gülensoy  ·  Cover illustration Eda Er  ·  Label nyxphere

Get it on Bandcamp Listen on Spotify
In progress

Two further records are finished and waiting: Marseille 2019, eight chamber improvisations held in a C minor field, and Things That Listen, six pieces for percussion, objects, voice and electronics built around the way an object keeps ringing after you stop touching it.

03

Watch

Small Storm for Piano and Mouth

From Unclassifiable Weather

I Am So Lost in Blue

From Entre Deux Rivages

C'est le son que vous obtenez en caressant une orchidée

From Entre Deux Rivages

Films by nyxphere.

04

Photographs

Ten frames, one wall.

05

Contact

For concerts, residencies and releases.