Featuring:
Radio Tonka
2026
Featured Transmission(s):
- Aired on May 22nd 22:00 CEST 2026
- Unstable Friday
- Genre: Live Radio
- Duration: 4 hrs
- Streaming live from: Radio Tonka
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22:00 - 22:05 Opening Speech Mix three Languages
22:06 - 00:00
Tjebbe van der Kooij will play an improvisational sound collage of this year’s carefully selected media pieces provided by on air on site which will include work from Leoni Roesler (Granada field recordings) Alessia_Damiani_Evaporation, BrunoBernard_microfaune, DavidChechelashvili_Air That Remembers, DavidRossato_Archetexture#4Void, HeinzJosefFlorian_DreamFlow, LeonardoVita_CoolSummer, PanayiotisKokoras_Magic, PrabuddhaMukhopadhyay_Soundsfrommywindow, Roxana_Lark_We never can know the truth, WendySmith_Tape Echo Sampling Sikora.
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00:00 Piano Forte: from installation to performance
00:00 - 00:11 We will Listen to Piano Forte Installation solo
00:11- 00:30 Will expend Piano Forte Installation with Jimi Hellinga on Hurly Gurly and Mariska de Groot installation called BROM 2022
00:30 - 00:53 Piano Forte Full performance installation Choir and Jimi Hellinga: Hurdy Gurdy
Piano/Forte
During Conflux Festival 2025, we played Piano / Forte as a performance, together with artists Jimi Hellinga, Myra Ida van der Veen, Wouter Mol and their vocal ensemble. We presented the commissioned performance re-imagining Piano / Forte as powerful as a ritual. Accompanied by the sounds of the hurdy-gurdy and electronics, performed by multi-instrumentalist Hellinga and the heavenly voices of the ensemble led by Mol and van der Veen, the performance resulted in an unforgettable moment. Great thanks to all fantastic singers Eva Luna, Tara, Arie, Elizabete, Marilena, Aurélie, Myra and Wouter, the confidence of everybody involved and the freedom and trust from Conflux Festival.
Piano / Forte is a sound sculpture that explores the acoustic richness of the piano harp. In this performance, two pianos stripped of the keys and supporting parts, swing in the air like pendulums. The oscillating motion of the swinging pianos causes the strings to resonate, revealing the sonic body of the piano.
Inside the pianos, an accelerometer was installed to measure the variations in 3-axis positions, and translate the motion into sound frequencies via a custom made software. These frequencies are sent back into the pianos via electromagnets (transducers) attached to the harps. Instead of being hammered by keys, the sound is generated by vibrating directly on the piano’s body, adding to the multitude of resonances and reverberations.
Piano / Forte is a work by Mike Rijnierse and Rob Bothof
00:54 - 01:00
Sino
Sino is a single-bell belltower where a bronze bell is engaged via an electronic transducer / resonator. Sino is a collaboration between Mike Rijnierse and Rob Bothof
In western culture, the bell initially had a crucial function as a call for alarm or a signal indicating the closing of city gates. In Sino the bell is placed upside down resembling a singing bowl. Often used in Eastern rituals, singing bowls are also known as ‘standing bells’ or ‘resting bells’. In Sino the bell does not signal a call for alarm or action, but as a ‘resting bell’ it becomes an instrument for inner reflection, a call for contemplation.
Using a resonator instead of a clapper to engage the bell is a very different technique. A strike of the clapper brings out the entire spectrum of harmonics as a result of the bell’s shape (the tuning), giving us a rich bell sound with a typical short attack / long delay envelope. With the resonator, although the frequency palette is still limited by the tuning and the harmonics present in the bell, we can pinpoint and bring out a single resonant frequency and engage it for as long as we like. This way we can deconstruct the harmonic qualities of the bell into single frequencies and from that build a new soundscape with multiple layers of different timbres.
OKIN-OMIS 01:00 - 01:24
Reconstruction of The Hague Central Station” — a sonic excavation of a place in transition by OKIN-OMIS and Sem Zeeman.
The record is entirely sourced from field recordings made in and around The Hague Central Station and the reconstruction of its entrance at Koningin Julianaplein. Experience urban sounds from the acoustic spectrum, infrasound, and electromagnetic fields; reconstructed into experimental soundscapes, hypnotic drones, dark textures, and industrial rhythms.
A site-specific release capturing movement in time, intermodal resonances and hidden sonic architectures.
Sound design, production and mix by OKIN-OMIS and Sem Zeeman
All sounds sourced from field recordings
All recordings captured with a Zoom H5 in and around The Hague Central Station on 02.24.2025, 02.25.2025 and 12.29.2025 released on Antilounge records
https://antilounge.bandcamp.com/album/reconstruction-of-the-hague-central-station
01:24- 01:40 Bambuso
Hans van Koolwijk Bambuso performance at Quartair at Hoogtij 2021 recorded by Jimi Hellinga
Hans van Koolwijk makes sound art. He experiences sound as an almost tangible material and works with it the way a sculptor works with stone or clay. As an artist he has always felt the need to visualise sound as an image:
sound becomes something you can see.
https://www.hansvankoolwijk.nl
