Karlheinz Essl

Portrait KHE

Sequitur IVb

for viola and live-electronics

Dedicated to Alexander Bruck

Score | Videos | Software | Performances | Reviews

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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. Up to now I have finished more than a dozen pieces including orchestral instruments like flute and violin, but also for voice and more exotic ones such as electric guitar, toy piano and kalimba.

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 becomes 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.


Alexander Bruck: viola, Karlheinz Essl: live-electronics, Nadia Lartigue: dance
Mexico City, Sala Miguel Covarrubias (UNAM)
Premier of LABoratorio on 3 Sep 2011

Judith Reiter: viola & live-electronics, Andrea Nagl: choreography & dance, Marian Essl: live-visuals
Vienna, Tanz*Hotel (A)
Performance of Sequitur_caleidoscopia on 19 May 2018


The score of Sequitur IVb can be downloaded for free. Please note that the music is protected by copyright.

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Updated: 26 Jul 2017