Another step into the realm of non-linear feedback systems, performed on a vintage MACKIE 1604 mixing desk. A work-in-progress where I explore different kinds of interaction on an analog mixer that produces sounds only by feeding the output back into the input, changing levels and EQ settings in an instrumental way.
https://essl.at/works/studies-NIM.html
The title pays tribute to Conlon Nancarrow's famous "Studies for Player Piano," which serves as a subliminal source of inspiration and motivation to venture much further into the unknown.

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Studies for No-Input Mixer

Another step into the realm of non-linear feedback systems, performed live on a vintage MACKIE 1604 mixer. A work-in-progress where I explore different kinds of interaction on an analog mixer that produces sounds only by feeding the output back into the input, changing levels and EQ settings in an instrumental way.
Have a look at the YouTube video of this performance: https://essl.at/works/studies-NIM.html

Study for No-Input Mixer #1

Study for No-Input Mixer #1 (2023) - four voices

This piece was recorded on July 4, 2023 at Studio kHz on a vintage MACKIE 1604 mixing desk. I used 7 channels without input, with internal audio feedback, controlled by faders and knobs with amazing resolution. A fantastic playing experience, where the slightest movement of your finger can drastically change the sound.
https://essl.at/works/studies-NIM.html

Study for No-Input Mixer #2

Study for No-Input Mixer #2 (2023) - seven voices

This piece was recorded on July 4, 2023 at Studio kHz on a vintage MACKIE 1604 mixing desk. I used only 3 channels without input, with internal audio feedback, controlled by faders and knobs with amazing resolution. A fantastic playing experience, where the slightest movement of your finger can drastically change the sound.
Watch the video: https://essl.at/works/studies-NIM.html

Study for No-Input Mixer #3

Study for No-Input Mixer #3 (2023) - three voices

This piece was recorded on July 5, 2023 at Studio kHz. I used only 1 channel without input with internal audio feedback and a constant high drone as a background, controlled by faders and knobs with amazing resolution. A fantastic playing experience, where the slightest movement of your fingers can drastically change the sound.
https://essl.at/works/studies-NIM.html

Study for No-Input Mixer #4

Study for No-Input Mixer #4 (2023)- one voice

This piece was recorded on July 5, 2023 at Studio kHz on a vintage MACKIE 1604 mixing desk. I used just 2 channels without input with internal audio feedback, controlled by faders and knobs with amazing resolution. A fantastic playing experience, where the slightest movement of your fingers can drastically change the sound.
https://essl.at/works/studies-NIM.html

Study for No-Input Mixer #5

Study for No-Input Mixer #5 (2023) - two voices

Audio recording of the installation "Why Frets? - Tombstone", recorded on September 15, 2023 at the Warsaw Autumn Festival.

Why Frets? - Tombstone (Warsaw Autumn 2023) by Marko Ciciliani

A new addition to my no-input mixer project that I started in 2023. Performed live with a MACKIE 802 mixing desk on Feb 8th, 2024 at Studio kHz. No edits, no overdubs.
https://www.essl.at/works/studies-NIM.html

Study for No-Input Mixer #8

Study for No-Input Mixer #8 (2024) - Blacksmith

Sound performance with a MakeNoise MATH function generator controlling the VCO and VCF of a Doepfer DARK ENERGY synthesizer. Performed live at Studio kHz on July 25th, 2024. Have a look at at the video: https://youtu.be/M-QavH4j5xk

Doing MATH

Doing MATH Nr. 4

Doing MATH Nr. 4 (2024) for function generator and modular synth

Improvised piece using the Make Noise 0-coast , Triple Expresso expression pedal interface, micro cassette recorder, reverb and delay pedals, Alimba resonator, and Sniff-EM electromagnetic pickup. Recorded live in one take.

Encounter with The Krell

Binaural production - listen with headphones!

Generative soundscape based on a two-dimensional random walk between four binaural soundscapes recorded in Krems, Horn and Gars/Kamp between August 31st and September 1st, 2024. Dedicated to my friend Gerhard Eckel:

    1) At the Taffa creek near Horn
    2) Gerhard Eckel and Jack Hauser performing under a resonant bridge
    3) A train ride along the river Kamp
    4) Sound from MONOCOLOR's audio-visual installation SCREEN—SPACE at the NÖ Landesgalerie Krems        

Released: Sep 2nd, 2024
https://essl.at/works/HEAD.html

H.E.A.D.

G.U.R.X.

G.U.R.X. (Gerhard's Unique Resonating Xylophone) - BINAURAL

Binaural production - listen with headphones!
In tempore belli...

Generative soundscape based on a two-dimensional random walk between four binaural soundscapes recorded in Mantua, Italy between September 10-14, 2024:
    1) A walk through the historical center of Mantua
    2) A gelataria with the best ice cream in town
    3) Inside the Basilica di Sant'Andrea
    4) A rehearsal of the ensemble "nova ars cantandi" in the Basilica Palatina di Santa Barbara, singing "Dona Nobis Pacem" from an unknown mass by Antonio Nola (1642-1715).
Released: Sep 23rd, 2024
Info: https://essl.at/works/HEAD.html

M.A.N.T.

M.A.N.T. (Most Answers Never Translate) - BINAURAL

Generative sound environment for an art installation by Beat Zoder, written in MaxMSP. 6-channel live performance with Max9 at Studio kHz on 12 Dec 2024. Binaural rendering with REAPER and dearVR. Listen with headphones! https://essl.at/works/hirsch-roehren.html

In 2006, Swiss artist Beat Zoderer and Austrian composer Karlheinz Essl were commissioned to create a collaborative work for the music festival Stanser Musiktage. In an abandoned repository situated in the heart of the Swiss alps, both artists were setting up a room installation made of sewer pipes. Those plastic parts of different lengths were equipped with funnel speakers driven by a customized computer program written in MaxMSP by Karlheinz Essl. Utilizing realtime composition algorithms which the composers develops since 1985, his software created an ever-changing sonic environment which never repeated itself.

Seen from outside, the structure resembled a giant jackstraw heap which invited the public to explore the space. Sounds that were projected from the loudspeakers through the pipes commuted through the air, creating a mysterious atmosphere as if some hidden creatures were talking to each other in an incomprehensible, yet compelling language.

Von Hirschen und Röhren

Von Hirschen und Röhren (2024) - BINAURAL

First encounter between the organist Jeremy Joseph and the composer Karlheinz Essl on his 0-COAST modular synth on 2 December 2024. We met in St. Ursula, a beautiful baroque church in Vienna which houses three fine organs, one of which - a sublime 7-rank Italian instrument from the 18th century - is used on this track. There were no preconceived musical ideas or any kind of preparatory sketches for the improvisation. It is simply an atmospheric late-night ‘jam session’ recorded in the darkness of the sanctuary. It captures us getting to know each other, finding one another and it illustrates the process of musical consolidation through improvisation.
https://essl.at/div/becoming-one.html

Becoming One (2024) - free improvisation for organ and synthesizer

Binaural production - listen with headphones!
Generative soundscape based on a two-dimensional random walk between four binaural soundscapes recorded in Brno, Czech Republic on Feb 6th, 2025:
1) A walk through Brno's main station
2) Garbage collection in the morning
3) Soundcheck on the stage of Divadlo na Orli with Karlheinz playing the toy piano
4) Listening to cars and trams from above
Info: https://essl.at/works/HEAD.html


B.R.N.O. (Booming Rebels Need Objection) - BINAURAL

Nava Hemyari (voice) & Karlheinz Essl (electronics). Part of the album "Karanava" (2025).
Two composers, differing in terms of gender, age, cultural background and instrument, leave their writing desks and venture into the unknown. Despite — or perhaps because of — these differences, they create something genuinely new together: songs composed instantly, without any prior planning, in the moment.
https://www.essl.at/div/karanava.html

Karanava

Pancakes

Karlheinz Essl & Nava Hemyari: Pancakes (2025)

by Marko Ciciliani
(excerpt)
no-input mixer solo

81 Matters in elemental Oder

Born 1960 in Vienna. Austrian composer, improviser and performer. He studied composition with Friedrich Cerha and musicology in Vienna. Besides writing experimental instrumental music, he performs on his own electronic instrument m@ze°2, develops software environments for computer-aided composition and creates generative sound and video environments. Since 2007 professor of composition for electro-acoustic and experimental music at the University of Music in Vienna.

Karlheinz Essl performs on a laptop computer that he has transformed into a live electronic musical instrument. The result is exciting and musical. You just won't hear these sounds anywhere else. He performs solo and in duets and trios, responding with sensitivity to fellow musicians, producing fascinating sound transformations, creating spontaneous surprises, and moving quickly from loops to cacophony to tiny clips of vocal sounds to all kinds of textures and ideas. He does all this with his m@ze°2(Modular Algorithmic Zound Environment) performance software. (Joel Chadabe, CDeMusic, Januar 2002)


Study for No-Input Mixer #8 (2024) - Blacksmith

Karlheinz Essl

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