Sequitur is a series of 14 compositions for various solo instruments and live-electronics written for outstanding soloists. Somehow it can be seen as a reference to Luciano Berio's famous Sequenze cycle of solo pieces which focus on specific playing techniques of the respective instrument including orchestral instrument. Essl's Sequitur cycle includes pieces for orchestral instruments like flute and violin, but also for voice, electric guitar, toy piano or kalimba.

All Sequitur composition use a software written in MaxMSP which creates an electronic accompaniment from the instrument’s live input; the player is confronted with his own playing, and this creates a situation like moving in a house of mirrors where the identities becomes blurred.

The Sequitur software generates a complex canon on the fly, the temporal structure and density of which being controlled by random operations. This yields different results every time the piece is performed. Although following a precisely notated score, there is always a good portion of surprise for the musician which emphasizes his awareness and attentiveness.

Info

Sequitur

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

i experimented with OpenAI's Text-To-Speech-Playground. i entered nonsensical phrases that contained a lot of repeating charachters and vowels. this are some results. it sounds really crazy and sometimes completely unexpected. the track names reflect the prompt.

Aeiou1

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

Recorded by Anton Lukoszevieze (cello) and Karlheinz Essl (live-electronics) at the University of East Anglia (Norwich, UK)on 18 Sep 2008.

The Sequitur cycle consists of 14 different compositions for various solo instruments and live-electronics. It can be seen as a reference to Berio’s famous “Sequenze” cycle of solo pieces which focus on specific playing techniques of the respective instrument.

All Sequitur composition use a software written in MaxMSP which creates an electronic accompaniment from the instrument’s live input; the player is confronted with his own playing, and this creates a situation like moving in a house of mirrors where the identities becomes blurred.

The software generates a complex canon on the fly, the temporal structure and density of which being controlled by random operations. This yields different results every time the piece is performed. Although following a precisely notated score, there is always a good portion of surprise for the musician which emphasizes his awareness and attentiveness.

Info: http://www.essl.at/works/sequitur/sequitur-4.html

Sequitur IV (2008) - for cello and live-electronics

Recorded live with Barbara Lüneburg (electric violon and live-electronics) on 30 Oct 2010 in Vienna.

Sequitur is a series of 14 compositions for various solo instruments and live-electronics written for outstanding soloists. Somehow it can be seen as a reference to Luciano Berio's famous Sequenze cycle of solo pieces which focus on specific playing techniques of the respective instrument. Essl's Sequitur cycle includes pieces for orchestral instruments like flute and violin, but also for voice, electric guitar, toy piano or kalimba.

All Sequitur composition use a software written in MaxMSP which creates an electronic accompaniment from the instrument’s live input; the player is confronted with his own playing, and this creates a situation like moving in a house of mirrors where the identities becomes blurred.

Info: http://www.essl.at/works/sequitur/sequitur-3.html

Sequitur III (2008) - for electric violin and live-electronics

Recorded live on 23 Apr 2008 at the Essl Museum, Klosterneuburg with Georg Riedl (clarinet) and Karlheinz Essl (live-electronics).

Sequitur is a series of 14 compositions for various solo instruments and live-electronics written for outstanding soloists. Somehow it can be seen as a reference to Luciano Berio's famous Sequenze cycle of solo pieces which focus on specific playing techniques of the respective instrument. Essl's Sequitur cycle includes pieces for orchestral instruments like flute and violin, but also for voice, electric guitar, toy piano or kalimba.

All Sequitur composition use a software written in MaxMSP which creates an electronic accompaniment from the instrument&rsquo;s live input; the player is confronted with his own playing, and this creates a situation like moving in a house of mirrors where the identities becomes blurred.

The Sequitur software generates a complex canon on the fly, the temporal structure and density of which being controlled by random operations. This yields different results every time the piece is performed. Although following a precisely notated score, there is always a good portion of surprise for the musician which emphasizes his awareness and attentiveness.

Info: http://www.essl.at/works/sequitur/sequitur-2.html

Sequitur II (2008) - for clarinet and live-electronics

Performed by Goska Isphording (harpsichord) and Karlheinz Essl (live-electronics) at NatLab Eindhoven (NL) on 10 Sep 2010.

In this composition, the harpsichord is played in a highly unconventional manner. Except for the end of the piece, no keys are touched. Instead, the sound board and the lowest string of the instrument are excited in different manners. A contact microphone mounted on the sound board acts like an acoustic lense that amplifies sounds that are normally inaudible. The interaction between the harpsichordist and the live-electronics creates a kind of meta-instrument. Its novel sounds and expressions purposely avoid the typical percussive sound of the harpsichord, which is only heard at the end of the piece as a quotation.

By preparing the instrument with a thin nylon thread, sustained "drone" sounds can be produced as an antitheses to the needle-sharp and rapidly decaying harpsichord attacks.

Info: http://www.essl.at/works/sequitur/sequitur-12.html

Sequitur XII (2009) - for harpsichord and live-electronics

First reading of Karlheinz Essl's Sequitur I piece with Karlheinz on electronics.

Sequitur-I by Karlheinz Essl

Recorded live at INTONAZIONE festival on 20 Sep 2019 at Eremo Santa Caterina in Rio nell'Elba, performed by Rafał Zalech (viola & live-electronics)during a dance performance of Andrea Nagl. Mixed and produced by Karlheinz Essl.

Sequitur is a series of compositions for various solo instruments and live-electronics which I started in 2008. Somehow it can be seen as a reference to Berio’s famous “Sequenze” cycle of solo pieces which focus on specific playing techniques of the respective instrument.

All Sequitur compositions use a software written in MaxMSP which creates an electronic accompaniment from the instrument’s live input; the player is confronted with his own playing, and this creates a situation like moving in a house of mirrors where the identities become blurred. Each piece can be performed by the player alone who just has to press a key on the computer keyboard whenever this is indicated in the score. The software generates a complex canon on the fly, the temporal structure and density of which being controlled by random operations. This yields different results every time the piece is performed. Although following a precisely notated score, there is always a good portion of surprise for the musician which emphasizes his awareness and attentiveness.

More information: http://www.essl.at/works/sequitur.html

Sequitur IIIb

Sequitur IIIb (2008/2018)for viola and live-electronics

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)


Sequitur XII (2009) - for harpsichord and live-electronics

Karlheinz Essl

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