installation
Moans and Groans (2025)
The forest is a sex toy: Recreating the wind in the trees through a series of sound sculptures with vibrator motors.

A problem occurred with the audio player. Here is some debug info:
Title: Geophonic recording of a tree in the wind
MP3: /audio/RootRecordings-2025-08.mp3
ID: 1750003308302528167
CSS ID: jquery_jplayer_1750003308302528167
Container ID: jp_container_1750003308302528167
The sculptures of Moans and Groans recreate the sensation of the wind in the trees. Through branches equipped with vibration motors, a custom-made electronic circuit translates seismic recordings captured between the roots and in the crevices of trees in Denmark back into vibration motors known from consumer electronics.
Viewers are invited to touch the sculptures and feel the vibrations they transmit as they resynthesize the experience of the tree rocking in the wind, from the perspective of the tree itself.
The title refers equally to the activities of the trees recorded – how they react to movements and wind in their surroundings — and the activities commonly associated with vibrator motor technology.
Moans and Groans is the first part of the long-term project Haptic Fields, a speculative artistic investigation of material vibrations in nature, biology, humanity and technology.
The first exhibition of Moans and Groans is at Notam in Oslo, Norway, where the sculptures are installed from April 2025 to ultimo June 2025.

Twigs with vibrators.


Electronics

Making electronics for Moans and Groans 2025.
Each sculpture contains a custom-designed audio player that is able to play back audio and translate it into vibration motor signals. It is designed by Mads Kjeldgaard 2025 for hyaline.systems, and both the electronics as well as the software running on it are open source:
- Hardware: Teensy Haptic Audio Player.
- Software: Haptic Fields Firmware.
Support
This project is made with the kind support of:
Part of longterm project Haptic Fields

A speculative artistic investigation of material vibrations in nature, biology, humanity and technology.

Life in the Quiet Zone (2025)
An audio essay about the so-called quiet zone in the Copenhagen S-train system.
A problem occurred with the audio player. Here is some debug info:
Title: Snippet from The Quiet Zone
MP3: /audio/music/The Quiet Zone - Snippet1.mp3
ID: 1750003409472289722
CSS ID: jquery_jplayer_1750003409472289722
Container ID: jp_container_1750003409472289722

Moans and Groans (2025)
The forest is a sex toy: Recreating the wind in the trees through a series of sound sculptures with vibrator motors.
A problem occurred with the audio player. Here is some debug info:
Title: Geophonic recording of a tree in the wind
MP3: /audio/RootRecordings-2025-08.mp3
ID: 1750003409472938017
CSS ID: jquery_jplayer_1750003409472938017
Container ID: jp_container_1750003409472938017

Empty Cloud (2025)
12 hours, 15 minutes and 7 seconds of minimalist background music.
A problem occurred with the audio player. Here is some debug info:
Title: Empty Cloud Part 8
MP3: /audio/music/emptycloudpart8.mp3
ID: 1750003409473099341
CSS ID: jquery_jplayer_1750003409473099341
Container ID: jp_container_1750003409473099341

Space In Between (2024)
Slow ambient piano looping with the window open and the outside world seeping in.
A problem occurred with the audio player. Here is some debug info:
Title: 15:15 PM (Excerpt)
MP3: /audio/music/1515pmexcerpt.mp3
ID: 1750003409473276225
CSS ID: jquery_jplayer_1750003409473276225
Container ID: jp_container_1750003409473276225

Internal Organs (2023)
A 4 channel interactive installation for virtual organs.

Musik for virtuelle orgler (2023)
A release of algorithmic organ music for virtual organs on SuperPang.
A problem occurred with the audio player. Here is some debug info:
Title: Har Mødt En (Met someone)
MP3: /audio/music/virtorgel.mp3
ID: 1750003409473520887
CSS ID: jquery_jplayer_1750003409473520887
Container ID: jp_container_1750003409473520887

Death Told So Clearly To Fuck Off (2022)
Ambisonic (3D audio) piece for speaker domes.
A problem occurred with the audio player. Here is some debug info:
Title: Binaural rendition of 'Death Told So Clearly To Fuck Off'
MP3: /audio/music/death_fuckoff_binaural.mp3
ID: 1750003409473677773
CSS ID: jquery_jplayer_1750003409473677773
Container ID: jp_container_1750003409473677773

Singularity: Music for a dance performance (2022)
Interactive sounds and music for solo dancer Külli Roosna.

Akkorder (2020)
Algorithmic music CD release on Ambitious Tapes.
A problem occurred with the audio player. Here is some debug info:
Title: Akkorder Track 7
MP3: /audio/music/akkordertrack7.mp3
ID: 1750003409473976668
CSS ID: jquery_jplayer_1750003409473976668
Container ID: jp_container_1750003409473976668

Computer Music Journal, Volume 44, Issue 4 - Space as instrument (MIT) (2020)
Feature in MIT's Computer Music Journal.

Hold Time (2020)
Algorithmic music release on SuperPang.
A problem occurred with the audio player. Here is some debug info:
Title: Track 2 from 'Hold Time'
MP3: /audio/music/hold2.mp3
ID: 1750003409474209026
CSS ID: jquery_jplayer_1750003409474209026
Container ID: jp_container_1750003409474209026

I Solens Flint 1000 Floder (2019)
Ambisonic (3D audio) piece for speaker domes, commissioned by NOTAM and Ultima Festival.
A problem occurred with the audio player. Here is some debug info:
Title: Binaural rendition of 'I Solens Flint 1000 Floder'
MP3: /audio/music/solens.mp3
ID: 1750003409474438710
CSS ID: jquery_jplayer_1750003409474438710
Container ID: jp_container_1750003409474438710

Sværm: Båndmagasinet (The Lake) (2019)
Harmonic drone piece released as part of the Tape Magazine by The Lake/Resonans Recs.
A problem occurred with the audio player. Here is some debug info:
Title: Sværm
MP3: /audio/music/svaerm.mp3
ID: 1750003409474593853
CSS ID: jquery_jplayer_1750003409474593853
Container ID: jp_container_1750003409474593853

Hollow Body Timbals (2018)
Field recordings of cicadas. CD released by FLUF.
A problem occurred with the audio player. Here is some debug info:
Title: Track 1 from 'Hollow Body Timbals'
MP3: /audio/music/hollow1.mp3
ID: 1750003409474745369
CSS ID: jquery_jplayer_1750003409474745369
Container ID: jp_container_1750003409474745369

States of Emergency (2018)
Electroacoustic music, released by Conditional Records.
A problem occurred with the audio player. Here is some debug info:
Title: States Of Emergency track 1
MP3: /audio/music/statestrack1.mp3
ID: 1750003409474892337
CSS ID: jquery_jplayer_1750003409474892337
Container ID: jp_container_1750003409474892337

Else Marie Pade 'Samlede tekster' (2017)
A book collecting all texts written by the Danish composer Else Marie Pade.

Music for Power Supplies (2017)
Drones based on electromagnetic recordings of studio power supplies. Released by Co-Dependent.

Spatial remixes of classic electronic music (2019-2021)
Classic pieces remixed in ambisonics for speaker domes and sound diffusion systems.