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


Recorded on Sep 2nd, 2011 at Sala Miguel Covarrubias on the UNAM Campus in Mexico City. Featuring Iván Manzanilla (vibraphone) & Karlheinz Essl (live-electronics).

Score and more: http://www.essl.at/works/sequitur/sequitur-11.html

Sequitur XI (2009) - for vibraphone and live-electronics

Recorded live on 9 June 2010 at the Essl Museum, Klosterneuburg by Tzenka Dianova (piano) and Karlheinz Essl (live-electronics).

Karlheinz Essl's “Sequitur XIII” (2009/2013) for extended piano and live electronics is an innovative work in which the piano has been transformed into a super instrument thanks to a computer-based algorithmic system. Turning the relatively simple instrumental material into an orchestral entity through various real-time harmonic and spectral alterations, the piece multiplies the functions of the original instruments by recording the musicians' performance and playing it together with its modified version (Maria Kallionpää, 2014)

Info: http://www.essl.at/works/sequitur/sequitur-13.html

Sequitur XIII (2009) - for extended piano and live-electronics

Recorded by Margarete Jungen (voice) and Karlheinz Essl (live-electronics)on 14 Apr 2010 at Studio kHz.

In Sequitur IX for mezzo soprano and live-electronics, I was scrutinizing non-western chants and vocal techniques. When I was composing this piece, I experimented with my own voice and tried out everything before writing it down. Here, I was utilizing techniques of overtone singing, combined with plainchant singing and belcanto. As if eastern and western religious ceremonies were melting together into something beyond…

Info: http://www.essl.at/works/sequitur/sequitur-9.html

Sequitur IX (2008) - for mezzo soprano and live-electronics

Recorded by Lars Mlekusch (alto sax) and Karlheinz Essl (live-electronics) at Studio kHz (18 Aug 2009).

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-7.html
Info: http://www.essl.at/works/sequitur.html

Sequitur VII - for alto saxophone and live-electronics

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 by Isabel Ettenauer for the CD "whatever shall be - music for toy instruments and electronics" (edition eirelav, 2013)

Having written several pieces for the toy piano before, I dedicated Sequitur V to this interesting instrument which — in fact — has not much in common with the piano as we know it. Its sound resembles chimes or maybe parts of a gamelan orchestra and therefore is not connected to the great history of classical piano music from Bach to Stockhausen; a fact that makes this instrument more accessible for me. Although the toy piano is tiny in every respect, the sound that it produces in Sequitur V becomes incredibly rich thanks to amplification and realtime sound processing.

Info: http://www.essl.at/works/sequitur/sequitur-5.html

Whatever Shall Be

Sequitur V

Sequitur V (2005) - for toy piano and live-electronics

Performed and recorded by Karlheinz Essl on 14 Jan 2009 at Studio kHz.

Having played the electric guitar as a rock-obsessed teenager, I re-discovered it 25 years later. In the meantime, I have studied composition and musicology and became heavily involved with electronic and computer music. Working as a composer writing complex musical scores I felt more and more the desire to re-connect to those ecstatic times when I was performing on stage with my electric guitar. But first I developed my own idiosyncratic electronic instrument called m@ze°2 (1998 ff.) which I am still using for free improvisation and live performances.

In 2007, I was ready for another change when the handling with MIDI controllers, graphic tablets, keyboards, computer mouses and pedals became more and more insufficient. I was seeking for an instantaneous, tactile input device to be included into my live-electronic setup. First I was thinking of a custom-made wooden resonance box equipped with strings, contact microphones and pickups that could be plucked, bowed, beaten and scratched. As such a device had to be constructed first (and I am not really good at tinkering) I suddenly realized that a common electric guitar already fulfilled most of my requirements. So I bought myself a Steinberger electric guitar — the most compressed instrument of its kind — and started to study the almost forgotten playing techniques again.

Fortunately, as the body obviously has a strong memory, I got back very quickly to the status of playing that I had 25 years ago. However, meanwhile my musical mind has completely changed: Not being primarily interested in re-adapting those powerful rock clichés, I tried to develop a fresh view onto the electric guitar. First of all I decided not to use a plectrum at all and to develop a personal finger-picking technique which incorporates several elements that I used when playing the double bass. Then I discovered the possibilities of an E-Bow, which serves as a wonderful substitution for the standard bow. Later I became familiar with tapping technique and the use of a volume pedal in order to shape the envelope of the sound.

With these achievements, I wrote a piece for electric guitar and live-electronics in the beginning 2008 as part of my Sequitur project. This cycle advertently relates to the famous "Sequenze" of Luciano Berio as an attempt to write a series of pieces which take advantage of the idiosyncratic instrumental possibilities - and confront them with a realtime sound processing environment that has its own secret life.

Info: http://www.essl.at/works/sequitur/sequitur-8.html

Sequitur VIII (2008)- for electric guitar 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

Performed by Amy Horvey (trumpet) and Karlheinz Essl (live-electronics)at the Concordia University, Montreal  on 23 Sep 2011.

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.

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-6.html

Sequitur VI (2008) - for trumpet and live-electronics

Sequitur XIV was written for the Hamburg-based pianist and performer Jennifer Hymer and sets the thumb piano in focus. This instrument, named ‘Mbira’ in Africa, was discovered in the middle of the 20th Century from the British ethnomusicologist Hugh Tracey, who developed out of it a standardized western instrument named ‘kalimba’, and let it be produced industrially. In contrast to the African original, this western new construction is tuned diatonically.

First I tried to approach the instrument like a child in that I pushed away all knowledge about the high art of Mbira-practice to the side. What did I see before me? A trapezoidal shaped wooden box with metal blades of differing lengths that were fastened over a sound hole in the middle. After I examined the sound possibilities of the kalimba’s body through rubbing, scratching and knocking, I attached a contact microphone to its surface and sent the sounds through the same computer program that I had developed for the other “Sequitur” compositions. Suddenly everything became enchanted: the canonic layering of my knocking and scraping noises compressed themselves into a polyrhythmic layering and I felt myself being transported to the south of Africa where the African musicians play this instrument in ensemble and thereby produce a highly complex polyphony which the Viennese musicologist Gerhard Kubik described as “inherent patterns.”

Only later I dedicated myself to the metal tines and through the help of live electronic manipulation found means and ways to dig out an ongoing diatonic. After many months of free experimenting, I was finally able to write a concisely written score for Jennifer Hymer, which turned my summing-ups of this instrument into a sound journey.

Recorded at the premier at Klang!Container in Hamburg on Sep 13th, 2009

Info: http://www.essl.at/works/sequitur/sequitur-14.html

Sequitur XIV (2009) - for kalimba and live-electronics

Aufgenommen am 27. November 2010 im ZKM_Kubus in Karlsruhe (D) mit Mike Svoboda (Posaune) und Karlheinz Essl (Live-Elektronik).

Seit 2008 arbeitet Karlheinz Essl an dem 14-teiligen Zyklus „Sequitur“ für unterschiedlichste Soloinstrumente und Live-Elektronik, der an die berühmten „Sequenze“ von Luciano Berio anknüpft. Hatte dieser einst prototypische Solostücke geschaffen, in denen die jeweiligen Instrumente mit all ihren klanglichen Finessen virtuos in Szene gesetzt werden, so geht es Essl um die Erweiterung dieses Ansatzes unter Einbeziehung der Live-Elektronik: Ein penibel auskomponierter und live gespielter Solopart wird via Mikrophon in ein eigens dafür geschaffenes Computerprogramm eingespeist, das daraus in Echtzeit einen elektronisches Klang-Environment generiert. Diese „Begleitung“ wird ausschließlich vom Input des Soloinstruments bestimmt, das mit sich selbst in vielfache Beziehung tritt. Wie in einem Spiegelkabinett lösen sich die ursprünglichen Identitäten auf und erzeugen ein komplexes Beziehungsgefüge, das einen tranceartigen Sog ausübt.

Sequitur X wurde für den Posaunisten Mike Svoboda geschrieben und ist ihm gewidmet.

Info: http://www.essl.at/works/sequitur/sequitur-10.html


Sequitur X (2010) - for trombone 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

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 was 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 IVb

Sequitur IVb (2008/2011) for viola and live-electronics

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)
